163604628 has 36 divisors (see below), whose sum is σ = 451153248. Its totient is φ = 49577040.

The previous prime is 163604621. The next prime is 163604657. The reversal of 163604628 is 826406361.

163604628 is digitally balanced in base 3, 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 (36).

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

It is a junction number, because it is equal to n+sod(n) for n = 163604592 and 163604601.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163604621) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 206176 + ... + 206967.

Almost surely, 2^163604628 is an apocalyptic number.

163604628 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

163604628 is an abundant number, since it is smaller than the sum of its proper divisors (287548620).

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

163604628 is a wasteful number, since it uses less digits than its factorization.

163604628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 413164 (or 413159 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 36.

The square root of 163604628 is about 12790.8024767799. The cubic root of 163604628 is about 546.9301458099.

The spelling of 163604628 in words is "one hundred sixty-three million, six hundred four thousand, six hundred twenty-eight".