22013504400 has 60 divisors (see below), whose sum is σ = 70516596272. Its totient is φ = 5870267520.

The previous prime is 22013504399. The next prime is 22013504413. The reversal of 22013504400 is 440531022.

It is a tau number, because it is divible by the number of its divisors (60).

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, 9171094 + ... + 9173493.

Almost surely, 2^22013504400 is an apocalyptic number.

22013504400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22013504400 is an abundant number, since it is smaller than the sum of its proper divisors (48503091872).

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

22013504400 is a wasteful number, since it uses less digits than its factorization.

22013504400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18344608 (or 18344597 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 21.

The spelling of 22013504400 in words is "twenty-two billion, thirteen million, five hundred four thousand, four hundred".