20057260 has 12 divisors (see below), whose sum is σ = 42120288. Its totient is φ = 8022896.

The previous prime is 20057249. The next prime is 20057269. The reversal of 20057260 is 6275002.

It is not an unprimeable number, because it can be changed into a prime (20057269) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 501412 + ... + 501451.

It is an arithmetic number, because the mean of its divisors is an integer number (3510024).

Almost surely, 2^20057260 is an apocalyptic number.

20057260 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20057260 is an abundant number, since it is smaller than the sum of its proper divisors (22063028).

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

20057260 is a wasteful number, since it uses less digits than its factorization.

20057260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1002872 (or 1002870 counting only the distinct ones).

The product of its (nonzero) digits is 840, while the sum is 22.

The square root of 20057260 is about 4478.5332420336. The cubic root of 20057260 is about 271.7005607570.

The spelling of 20057260 in words is "twenty million, fifty-seven thousand, two hundred sixty".