20200928 has 24 divisors (see below), whose sum is σ = 43386840. Its totient is φ = 9182080.

The previous prime is 20200903. The next prime is 20200937. The reversal of 20200928 is 82900202.

It is a super-2 number, since 2×20200928² = 816154984122368, which contains 22 as substring.

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, 28343 + ... + 29046.

It is an arithmetic number, because the mean of its divisors is an integer number (1807785).

Almost surely, 2^20200928 is an apocalyptic number.

It is an amenable number.

20200928 is an abundant number, since it is smaller than the sum of its proper divisors (23185912).

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

20200928 is a wasteful number, since it uses less digits than its factorization.

20200928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57410 (or 57402 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 23.

The square root of 20200928 is about 4494.5442483082. The cubic root of 20200928 is about 272.3477386348.

The spelling of 20200928 in words is "twenty million, two hundred thousand, nine hundred twenty-eight".