20860746 has 24 divisors (see below), whose sum is σ = 44037504. Its totient is φ = 6586920.

The previous prime is 20860739. The next prime is 20860757. The reversal of 20860746 is 64706802.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2650 + ... + 6981.

It is an arithmetic number, because the mean of its divisors is an integer number (1834896).

Almost surely, 2^20860746 is an apocalyptic number.

20860746 is an abundant number, since it is smaller than the sum of its proper divisors (23176758).

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

20860746 is a wasteful number, since it uses less digits than its factorization.

20860746 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9674 (or 9655 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 33.

The square root of 20860746 is about 4567.3565658924. The cubic root of 20860746 is about 275.2812373546.

The spelling of 20860746 in words is "twenty million, eight hundred sixty thousand, seven hundred forty-six".