20238560 has 24 divisors (see below), whose sum is σ = 47813976. Its totient is φ = 8095360.

The previous prime is 20238541. The next prime is 20238587. The reversal of 20238560 is 6583202.

It is a congruent number.

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, 63086 + ... + 63405.

It is an arithmetic number, because the mean of its divisors is an integer number (1992249).

Almost surely, 2^20238560 is an apocalyptic number.

20238560 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20238560 is an abundant number, since it is smaller than the sum of its proper divisors (27575416).

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

20238560 is a wasteful number, since it uses less digits than its factorization.

20238560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126506 (or 126498 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 20238560 is about 4498.7287093133. The cubic root of 20238560 is about 272.5167512077.

The spelling of 20238560 in words is "twenty million, two hundred thirty-eight thousand, five hundred sixty".