22432120440 has 64 divisors (see below), whose sum is σ = 67385532960. Its totient is φ = 5973972480.

The previous prime is 22432120411. The next prime is 22432120457. The reversal of 22432120440 is 4402123422.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 22432120440.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32631 + ... + 214310.

Almost surely, 2^22432120440 is an apocalyptic number.

22432120440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22432120440 is an abundant number, since it is smaller than the sum of its proper divisors (44953412520).

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

22432120440 is a wasteful number, since it uses less digits than its factorization.

22432120440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 247712 (or 247708 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 24.

Adding to 22432120440 its reverse (4402123422), we get a palindrome (26834243862).

The spelling of 22432120440 in words is "twenty-two billion, four hundred thirty-two million, one hundred twenty thousand, four hundred forty".