23431445400 has 96 divisors (see below), whose sum is σ = 79240910400. Its totient is φ = 5680348800.

The previous prime is 23431445399. The next prime is 23431445447. The reversal of 23431445400 is 454413432.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1768510 + ... + 1781709.

It is an arithmetic number, because the mean of its divisors is an integer number (825426150).

Almost surely, 2^23431445400 is an apocalyptic number.

23431445400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23431445400 is an abundant number, since it is smaller than the sum of its proper divisors (55809465000).

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

23431445400 is a wasteful number, since it uses less digits than its factorization.

23431445400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3550249 (or 3550240 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 30.

Adding to 23431445400 its reverse (454413432), we get a palindrome (23885858832).

The spelling of 23431445400 in words is "twenty-three billion, four hundred thirty-one million, four hundred forty-five thousand, four hundred".