200639904 has 48 divisors (see below), whose sum is σ = 527419872. Its totient is φ = 66786048.

The previous prime is 200639903. The next prime is 200639917. The reversal of 200639904 is 409936002.

200639904 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 (48).

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (200639903) 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, 115587 + ... + 117309.

It is an arithmetic number, because the mean of its divisors is an integer number (10987914).

Almost surely, 2^200639904 is an apocalyptic number.

200639904 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

200639904 is an abundant number, since it is smaller than the sum of its proper divisors (326779968).

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

200639904 is a wasteful number, since it uses less digits than its factorization.

200639904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2949 (or 2941 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 33.

The square root of 200639904 is about 14164.7415790052. The cubic root of 200639904 is about 585.4265805278.

The spelling of 200639904 in words is "two hundred million, six hundred thirty-nine thousand, nine hundred four".