204156064 has 48 divisors (see below), whose sum is σ = 483537600. Its totient is φ = 82888704.

The previous prime is 204156061. The next prime is 204156079. The reversal of 204156064 is 460651402.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is not an unprimeable number, because it can be changed into a prime (204156061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19729 + ... + 28240.

It is an arithmetic number, because the mean of its divisors is an integer number (10073700).

Almost surely, 2^204156064 is an apocalyptic number.

It is an amenable number.

204156064 is an abundant number, since it is smaller than the sum of its proper divisors (279381536).

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

204156064 is a wasteful number, since it uses less digits than its factorization.

204156064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48005 (or 47997 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 28.

The square root of 204156064 is about 14288.3191453719. The cubic root of 204156064 is about 588.8266097871.

The spelling of 204156064 in words is "two hundred four million, one hundred fifty-six thousand, sixty-four".