22404021432 has 64 divisors (see below), whose sum is σ = 61082112000. Its totient is φ = 6806277504.

The previous prime is 22404021397. The next prime is 22404021457. The reversal of 22404021432 is 23412040422.

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

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, 429832 + ... + 479127.

It is an arithmetic number, because the mean of its divisors is an integer number (954408000).

Almost surely, 2^22404021432 is an apocalyptic number.

It is an amenable number.

22404021432 is an abundant number, since it is smaller than the sum of its proper divisors (38678090568).

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

22404021432 is a wasteful number, since it uses less digits than its factorization.

22404021432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 909060 (or 909056 counting only the distinct ones).

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

Adding to 22404021432 its reverse (23412040422), we get a palindrome (45816061854).

The spelling of 22404021432 in words is "twenty-two billion, four hundred four million, twenty-one thousand, four hundred thirty-two".