20928076 has 24 divisors (see below), whose sum is σ = 39764480. Its totient is φ = 9580032.

The previous prime is 20928073. The next prime is 20928077. The reversal of 20928076 is 67082902.

It is not an unprimeable number, because it can be changed into a prime (20928073) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5020 + ... + 8188.

Almost surely, 2^20928076 is an apocalyptic number.

20928076 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

20928076 is a deficient number, since it is larger than the sum of its proper divisors (18836404).

20928076 is a wasteful number, since it uses less digits than its factorization.

20928076 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3313 (or 3311 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 34.

The square root of 20928076 is about 4574.7214122829. The cubic root of 20928076 is about 275.5770845658.

The spelling of 20928076 in words is "twenty million, nine hundred twenty-eight thousand, seventy-six".