22431233400 has 48 divisors (see below), whose sum is σ = 69536825400. Its totient is φ = 5981662080.

The previous prime is 22431233381. The next prime is 22431233411. The reversal of 22431233400 is 433213422.

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 11 ways as a sum of consecutive naturals, for example, 18692095 + ... + 18693294.

Almost surely, 2^22431233400 is an apocalyptic number.

22431233400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22431233400 is an abundant number, since it is smaller than the sum of its proper divisors (47105592000).

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

22431233400 is a wasteful number, since it uses less digits than its factorization.

22431233400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37385408 (or 37385399 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 24.

Adding to 22431233400 its reverse (433213422), we get a palindrome (22864446822).

The spelling of 22431233400 in words is "twenty-two billion, four hundred thirty-one million, two hundred thirty-three thousand, four hundred".