22044660400 has 60 divisors (see below), whose sum is σ = 60528346672. Its totient is φ = 7558168320.

The previous prime is 22044660389. The next prime is 22044660437. The reversal of 22044660400 is 406644022.

It is a Harshad number since it is a multiple of its sum of digits (28).

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 11 ways as a sum of consecutive naturals, for example, 3933747 + ... + 3939346.

Almost surely, 2^22044660400 is an apocalyptic number.

22044660400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22044660400 is an abundant number, since it is smaller than the sum of its proper divisors (38483686272).

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

22044660400 is a wasteful number, since it uses less digits than its factorization.

22044660400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7873118 (or 7873107 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 28.

The spelling of 22044660400 in words is "twenty-two billion, forty-four million, six hundred sixty thousand, four hundred".