20074688 has 28 divisors (see below), whose sum is σ = 42181272. Its totient is φ = 9446400.

The previous prime is 20074669. The next prime is 20074711. The reversal of 20074688 is 88647002.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8138 + ... + 10313.

It is an arithmetic number, because the mean of its divisors is an integer number (1506474).

Almost surely, 2^20074688 is an apocalyptic number.

It is an amenable number.

20074688 is an abundant number, since it is smaller than the sum of its proper divisors (22106584).

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

20074688 is a wasteful number, since it uses less digits than its factorization.

20074688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18480 (or 18470 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 35.

The square root of 20074688 is about 4480.4785458698. The cubic root of 20074688 is about 271.7792326285.

The spelling of 20074688 in words is "twenty million, seventy-four thousand, six hundred eighty-eight".