20504792 has 32 divisors (see below), whose sum is σ = 47934720. Its totient is φ = 7988640.

The previous prime is 20504777. The next prime is 20504843. The reversal of 20504792 is 29740502.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16028 + ... + 17259.

It is an arithmetic number, because the mean of its divisors is an integer number (1497960).

Almost surely, 2^20504792 is an apocalyptic number.

20504792 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

20504792 is an abundant number, since it is smaller than the sum of its proper divisors (27429928).

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

20504792 is a wasteful number, since it uses less digits than its factorization.

20504792 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33311 (or 33307 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 29.

The square root of 20504792 is about 4528.2217260200. The cubic root of 20504792 is about 273.7065072720.

The spelling of 20504792 in words is "twenty million, five hundred four thousand, seven hundred ninety-two".