20970522 has 32 divisors (see below), whose sum is σ = 46805760. Its totient is φ = 6959520.

The previous prime is 20970517. The next prime is 20970533. The reversal of 20970522 is 22507902.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13918 + ... + 15350.

It is an arithmetic number, because the mean of its divisors is an integer number (1462680).

Almost surely, 2^20970522 is an apocalyptic number.

20970522 is an abundant number, since it is smaller than the sum of its proper divisors (25835238).

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

20970522 is a wasteful number, since it uses less digits than its factorization.

20970522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1715 (or 1709 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 27.

The square root of 20970522 is about 4579.3582519825. The cubic root of 20970522 is about 275.7632658125.

The spelling of 20970522 in words is "twenty million, nine hundred seventy thousand, five hundred twenty-two".