22044432400 has 60 divisors (see below), whose sum is σ = 53008406352. Its totient is φ = 8810005120.

The previous prime is 22044432383. The next prime is 22044432437. The reversal of 22044432400 is 423444022.

It is a Harshad number since it is a multiple of its sum of digits (25).

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, 441507 + ... + 488893.

Almost surely, 2^22044432400 is an apocalyptic number.

22044432400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22044432400 is an abundant number, since it is smaller than the sum of its proper divisors (30963973952).

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

22044432400 is a wasteful number, since it uses less digits than its factorization.

22044432400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48568 (or 48557 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 25.

Adding to 22044432400 its reverse (423444022), we get a palindrome (22467876422).

The spelling of 22044432400 in words is "twenty-two billion, forty-four million, four hundred thirty-two thousand, four hundred".