22940857644 has 24 divisors (see below), whose sum is σ = 53532015600. Its totient is φ = 7646474304.

The previous prime is 22940857627. The next prime is 22940857651. The reversal of 22940857644 is 44675804922.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 177882 + ... + 278430.

It is an arithmetic number, because the mean of its divisors is an integer number (2230500650).

Almost surely, 2^22940857644 is an apocalyptic number.

It is an amenable number.

22940857644 is an abundant number, since it is smaller than the sum of its proper divisors (30591157956).

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

22940857644 is a wasteful number, since it uses less digits than its factorization.

22940857644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119569 (or 119567 counting only the distinct ones).

The product of its (nonzero) digits is 3870720, while the sum is 51.

The spelling of 22940857644 in words is "twenty-two billion, nine hundred forty million, eight hundred fifty-seven thousand, six hundred forty-four".