20908048 has 20 divisors (see below), whose sum is σ = 46296640. Its totient is φ = 8960544.

The previous prime is 20908021. The next prime is 20908099. The reversal of 20908048 is 84080902.

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, 93228 + ... + 93451.

It is an arithmetic number, because the mean of its divisors is an integer number (2314832).

Almost surely, 2^20908048 is an apocalyptic number.

20908048 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

20908048 is an abundant number, since it is smaller than the sum of its proper divisors (25388592).

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

20908048 is a wasteful number, since it uses less digits than its factorization.

20908048 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 186694 (or 186688 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 31.

The square root of 20908048 is about 4572.5319025678. The cubic root of 20908048 is about 275.4891481590.

The spelling of 20908048 in words is "twenty million, nine hundred eight thousand, forty-eight".