204145704 has 64 divisors (see below), whose sum is σ = 648086400. Its totient is φ = 58326912.

The previous prime is 204145693. The next prime is 204145727. The reversal of 204145704 is 407541402.

204145704 is a `hidden beast` number, since 204 + 1 + 457 + 0 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 65997 + ... + 69020.

It is an arithmetic number, because the mean of its divisors is an integer number (10126350).

Almost surely, 2^204145704 is an apocalyptic number.

204145704 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

204145704 is an abundant number, since it is smaller than the sum of its proper divisors (443940696).

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

204145704 is a wasteful number, since it uses less digits than its factorization.

204145704 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135039 (or 135029 counting only the distinct ones).

The product of its (nonzero) digits is 4480, while the sum is 27.

The square root of 204145704 is about 14287.9566068770. The cubic root of 204145704 is about 588.8166495198.

The spelling of 204145704 in words is "two hundred four million, one hundred forty-five thousand, seven hundred four".