22457973920 has 24 divisors (see below), whose sum is σ = 53056963764. Its totient is φ = 8983189504.

The previous prime is 22457973919. The next prime is 22457973961. The reversal of 22457973920 is 2937975422.

It can be written as a sum of positive squares in 2 ways, for example, as 20769421456 + 1688552464 = 144116^2 + 41092^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 70181009 + ... + 70181328.

Almost surely, 2^22457973920 is an apocalyptic number.

22457973920 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22457973920 is an abundant number, since it is smaller than the sum of its proper divisors (30598989844).

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

22457973920 is a wasteful number, since it uses less digits than its factorization.

22457973920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140362352 (or 140362344 counting only the distinct ones).

The product of its (nonzero) digits is 1905120, while the sum is 50.

The spelling of 22457973920 in words is "twenty-two billion, four hundred fifty-seven million, nine hundred seventy-three thousand, nine hundred twenty".