20046928 has 20 divisors (see below), whose sum is σ = 42372288. Its totient is φ = 9112160.

The previous prime is 20046913. The next prime is 20046937. The reversal of 20046928 is 82964002.

It is a self number, because there is not a number n which added to its sum of digits gives 20046928.

It is a congruent number.

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, 56776 + ... + 57127.

Almost surely, 2^20046928 is an apocalyptic number.

It is an amenable number.

20046928 is an abundant number, since it is smaller than the sum of its proper divisors (22325360).

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

20046928 is a wasteful number, since it uses less digits than its factorization.

20046928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113922 (or 113916 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 31.

The square root of 20046928 is about 4477.3795907875. The cubic root of 20046928 is about 271.6538994757.

The spelling of 20046928 in words is "twenty million, forty-six thousand, nine hundred twenty-eight".