22452172320 has 96 divisors (see below), whose sum is σ = 74446706880. Its totient is φ = 5672125440.

The previous prime is 22452172297. The next prime is 22452172321. The reversal of 22452172320 is 2327125422.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (22452172321) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1221811 + ... + 1240050.

It is an arithmetic number, because the mean of its divisors is an integer number (775486530).

Almost surely, 2^22452172320 is an apocalyptic number.

22452172320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22452172320 is an abundant number, since it is smaller than the sum of its proper divisors (51994534560).

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

22452172320 is a wasteful number, since it uses less digits than its factorization.

22452172320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2461898 (or 2461890 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 30.

Adding to 22452172320 its reverse (2327125422), we get a palindrome (24779297742).

The spelling of 22452172320 in words is "twenty-two billion, four hundred fifty-two million, one hundred seventy-two thousand, three hundred twenty".