204690264 has 64 divisors (see below), whose sum is σ = 529459200. Its totient is φ = 65904384.

The previous prime is 204690263. The next prime is 204690281. The reversal of 204690264 is 462096402.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204690263) by changing a digit.

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, 87964 + ... + 90260.

It is an arithmetic number, because the mean of its divisors is an integer number (8272800).

Almost surely, 2^204690264 is an apocalyptic number.

204690264 is a gapful number since it is divisible by the number (24) 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 204690264, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (264729600).

204690264 is an abundant number, since it is smaller than the sum of its proper divisors (324768936).

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

204690264 is a wasteful number, since it uses less digits than its factorization.

204690264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2432 (or 2428 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 33.

The square root of 204690264 is about 14307.0005242189. Note that the first 3 decimals coincide. The cubic root of 204690264 is about 589.3397420982.

The spelling of 204690264 in words is "two hundred four million, six hundred ninety thousand, two hundred sixty-four".