20265708 has 12 divisors (see below), whose sum is σ = 47286680. Its totient is φ = 6755232.

The previous prime is 20265703. The next prime is 20265709. The reversal of 20265708 is 80756202.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (20265701) 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, 844393 + ... + 844416.

Almost surely, 2^20265708 is an apocalyptic number.

It is an amenable number.

20265708 is an abundant number, since it is smaller than the sum of its proper divisors (27020972).

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

20265708 is a wasteful number, since it uses less digits than its factorization.

20265708 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1688816 (or 1688814 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 30.

The square root of 20265708 is about 4501.7449949992. The cubic root of 20265708 is about 272.6385480682.

The spelling of 20265708 in words is "twenty million, two hundred sixty-five thousand, seven hundred eight".