208625004 has 96 divisors (see below), whose sum is σ = 622307840. Its totient is φ = 59206464.

The previous prime is 208624987. The next prime is 208625023. The reversal of 208625004 is 400526802.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 122382 + ... + 124074.

Almost surely, 2^208625004 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 208625004, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (311153920).

208625004 is an abundant number, since it is smaller than the sum of its proper divisors (413682836).

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

208625004 is a wasteful number, since it uses less digits than its factorization.

208625004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1876 (or 1868 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

The square root of 208625004 is about 14443.8569641215. The cubic root of 208625004 is about 593.0920727941.

The spelling of 208625004 in words is "two hundred eight million, six hundred twenty-five thousand, four".