204983172 has 36 divisors (see below), whose sum is σ = 545424880. Its totient is φ = 64731312.

The previous prime is 204983137. The next prime is 204983173. The reversal of 204983172 is 271389402.

204983172 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (204983173) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 149158 + ... + 150525.

Almost surely, 2^204983172 is an apocalyptic number.

It is an amenable number.

204983172 is an abundant number, since it is smaller than the sum of its proper divisors (340441708).

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

204983172 is a wasteful number, since it uses less digits than its factorization.

204983172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 299712 (or 299707 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The square root of 204983172 is about 14317.2333919651. The cubic root of 204983172 is about 589.6207195572.

The spelling of 204983172 in words is "two hundred four million, nine hundred eighty-three thousand, one hundred seventy-two".