20901260 has 12 divisors (see below), whose sum is σ = 43892688. Its totient is φ = 8360496.

The previous prime is 20901259. The next prime is 20901277. The reversal of 20901260 is 6210902.

It is a Harshad number since it is a multiple of its sum of digits (20), and also a Moran number because the ratio is a prime number: 1045063 = 20901260 / (2 + 0 + 9 + 0 + 1 + 2 + 6 + 0).

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, 522512 + ... + 522551.

It is an arithmetic number, because the mean of its divisors is an integer number (3657724).

Almost surely, 2^20901260 is an apocalyptic number.

20901260 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20901260 is an abundant number, since it is smaller than the sum of its proper divisors (22991428).

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

20901260 is a wasteful number, since it uses less digits than its factorization.

20901260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1045072 (or 1045070 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 20.

The square root of 20901260 is about 4571.7895839594. The cubic root of 20901260 is about 275.4593315266.

The spelling of 20901260 in words is "twenty million, nine hundred one thousand, two hundred sixty".