20900496 has 20 divisors (see below), whose sum is σ = 53993072. Its totient is φ = 6966816.

The previous prime is 20900489. The next prime is 20900527. The reversal of 20900496 is 69400902.

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 217666 + ... + 217761.

Almost surely, 2^20900496 is an apocalyptic number.

It is an amenable number.

20900496 is an abundant number, since it is smaller than the sum of its proper divisors (33092576).

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

20900496 is a wasteful number, since it uses less digits than its factorization.

20900496 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 435438 (or 435432 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 30.

The square root of 20900496 is about 4571.7060272944. The cubic root of 20900496 is about 275.4559752139.

The spelling of 20900496 in words is "twenty million, nine hundred thousand, four hundred ninety-six".