628608204 has 144 divisors (see below), whose sum is σ = 1904121856. Its totient is φ = 171072000.

The previous prime is 628608199. The next prime is 628608287. The reversal of 628608204 is 402806826.

628608204 is a `hidden beast` number, since 6 + 28 + 608 + 20 + 4 = 666.

It is a super-2 number, since 2×628608204² = 790296548272211232, which contains 22 as substring.

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

It is a plaindrome in base 16.

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 47 ways as a sum of consecutive naturals, for example, 522804 + ... + 524004.

Almost surely, 2^628608204 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 628608204, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (952060928).

628608204 is an abundant number, since it is smaller than the sum of its proper divisors (1275513652).

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

628608204 is a wasteful number, since it uses less digits than its factorization.

628608204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1316 (or 1311 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 36.

The square root of 628608204 is about 25072.0602264752. The cubic root of 628608204 is about 856.6301351252.

The spelling of 628608204 in words is "six hundred twenty-eight million, six hundred eight thousand, two hundred four".