222325400 has 72 divisors (see below), whose sum is σ = 568231860. Its totient is φ = 80836800.

The previous prime is 222325373. The next prime is 222325417. The reversal of 222325400 is 4523222.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

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 17 ways as a sum of consecutive naturals, for example, 19607 + ... + 28793.

Almost surely, 2^222325400 is an apocalyptic number.

222325400 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 222325400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (284115930).

222325400 is an abundant number, since it is smaller than the sum of its proper divisors (345906460).

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

222325400 is a wasteful number, since it uses less digits than its factorization.

222325400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9225 (or 9205 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 20.

The square root of 222325400 is about 14910.5801362657. The cubic root of 222325400 is about 605.8005930052.

Adding to 222325400 its reverse (4523222), we get a palindrome (226848622).

The spelling of 222325400 in words is "two hundred twenty-two million, three hundred twenty-five thousand, four hundred".