222403412 has 48 divisors (see below), whose sum is σ = 486431232. Its totient is φ = 86438880.

The previous prime is 222403403. The next prime is 222403421. The reversal of 222403412 is 214304222.

It is an interprime number because it is at equal distance from previous prime (222403403) and next prime (222403421).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 197483 + ... + 198605.

It is an arithmetic number, because the mean of its divisors is an integer number (10133984).

Almost surely, 2^222403412 is an apocalyptic number.

222403412 is a gapful number since it is divisible by the number (22) 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 222403412, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (243215616).

222403412 is an abundant number, since it is smaller than the sum of its proper divisors (264027820).

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

222403412 is a wasteful number, since it uses less digits than its factorization.

222403412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1788 (or 1786 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 222403412 is about 14913.1959016168. The cubic root of 222403412 is about 605.8714413941.

Adding to 222403412 its reverse (214304222), we get a palindrome (436707634).

It can be divided in two parts, 22240 and 3412, that added together give a palindrome (25652).

The spelling of 222403412 in words is "two hundred twenty-two million, four hundred three thousand, four hundred twelve".