22799444400 has 180 divisors, whose sum is σ = 81259269312. Its totient is φ = 5915496960.

The previous prime is 22799444389. The next prime is 22799444401. The reversal of 22799444400 is 444499722.

It is a tau number, because it is divible by the number of its divisors (180).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (22799444401) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 47617 + ... + 218783.

Almost surely, 2^22799444400 is an apocalyptic number.

22799444400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22799444400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40629634656).

22799444400 is an abundant number, since it is smaller than the sum of its proper divisors (58459824912).

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

22799444400 is a wasteful number, since it uses less digits than its factorization.

22799444400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171228 (or 171214 counting only the distinct ones).

The product of its (nonzero) digits is 580608, while the sum is 45.

The spelling of 22799444400 in words is "twenty-two billion, seven hundred ninety-nine million, four hundred forty-four thousand, four hundred".