20457160 has 32 divisors (see below), whose sum is σ = 46402560. Its totient is φ = 8116416.

The previous prime is 20457149. The next prime is 20457161. The reversal of 20457160 is 6175402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20457161) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3067 + ... + 7093.

It is an arithmetic number, because the mean of its divisors is an integer number (1450080).

Almost surely, 2^20457160 is an apocalyptic number.

20457160 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20457160 is an abundant number, since it is smaller than the sum of its proper divisors (25945400).

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

20457160 is a wasteful number, since it uses less digits than its factorization.

20457160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4165 (or 4161 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 25.

The square root of 20457160 is about 4522.9592083060. The cubic root of 20457160 is about 273.4944056911.

The spelling of 20457160 in words is "twenty million, four hundred fifty-seven thousand, one hundred sixty".