204247572 has 24 divisors (see below), whose sum is σ = 476812896. Its totient is φ = 68048928.

The previous prime is 204247541. The next prime is 204247577. The reversal of 204247572 is 275742402.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204247577) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38463 + ... + 43449.

It is an arithmetic number, because the mean of its divisors is an integer number (19867204).

Almost surely, 2^204247572 is an apocalyptic number.

It is an amenable number.

204247572 is an abundant number, since it is smaller than the sum of its proper divisors (272565324).

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

204247572 is a wasteful number, since it uses less digits than its factorization.

204247572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8407 (or 8405 counting only the distinct ones).

The product of its (nonzero) digits is 31360, while the sum is 33.

The square root of 204247572 is about 14291.5209827366. The cubic root of 204247572 is about 588.9145723909.

Adding to 204247572 its reverse (275742402), we get a palindrome (479989974).

The spelling of 204247572 in words is "two hundred four million, two hundred forty-seven thousand, five hundred seventy-two".