20465028 has 24 divisors (see below), whose sum is σ = 53057760. Its totient is φ = 6821640.

The previous prime is 20464987. The next prime is 20465041. The reversal of 20465028 is 82056402.

20465028 is a `hidden beast` number, since 2 + 0 + 4 + 650 + 2 + 8 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 20464992 and 20465010.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 94638 + ... + 94853.

It is an arithmetic number, because the mean of its divisors is an integer number (2210740).

Almost surely, 2^20465028 is an apocalyptic number.

It is an amenable number.

20465028 is an abundant number, since it is smaller than the sum of its proper divisors (32592732).

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

20465028 is a wasteful number, since it uses less digits than its factorization.

20465028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 189504 (or 189496 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

The square root of 20465028 is about 4523.8289092316. The cubic root of 20465028 is about 273.5294639652.

The spelling of 20465028 in words is "twenty million, four hundred sixty-five thousand, twenty-eight".