204215532 has 24 divisors (see below), whose sum is σ = 476876400. Its totient is φ = 68018496.

The previous prime is 204215491. The next prime is 204215537. The reversal of 204215532 is 235512402.

It is not an unprimeable number, because it can be changed into a prime (204215537) 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, 11194 + ... + 23102.

It is an arithmetic number, because the mean of its divisors is an integer number (19869850).

Almost surely, 2^204215532 is an apocalyptic number.

It is an amenable number.

204215532 is an abundant number, since it is smaller than the sum of its proper divisors (272660868).

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

204215532 is a wasteful number, since it uses less digits than its factorization.

204215532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13345 (or 13343 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 204215532 is about 14290.3999944018. The cubic root of 204215532 is about 588.8837767419.

Adding to 204215532 its reverse (235512402), we get a palindrome (439727934).

The spelling of 204215532 in words is "two hundred four million, two hundred fifteen thousand, five hundred thirty-two".