222303420 has 192 divisors, whose sum is σ = 745113600. Its totient is φ = 54846720.

The previous prime is 222303413. The next prime is 222303427. The reversal of 222303420 is 24303222.

222303420 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (222303413) and next prime (222303427).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 222303393 and 222303402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222303427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 481990 + ... + 482450.

It is an arithmetic number, because the mean of its divisors is an integer number (3880800).

Almost surely, 2^222303420 is an apocalyptic number.

222303420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 222303420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (372556800).

222303420 is an abundant number, since it is smaller than the sum of its proper divisors (522810180).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

222303420 is a wasteful number, since it uses less digits than its factorization.

222303420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 545 (or 537 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 18.

The square root of 222303420 is about 14909.8430575241. The cubic root of 222303420 is about 605.7806283709.

Adding to 222303420 its reverse (24303222), we get a palindrome (246606642).

The spelling of 222303420 in words is "two hundred twenty-two million, three hundred three thousand, four hundred twenty".