231400044400 has 120 divisors (see below), whose sum is σ = 648877040640. Its totient is φ = 77649089280.

The previous prime is 231400044373. The next prime is 231400044413. The reversal of 231400044400 is 4440004132.

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, 747580 + ... + 1010779.

It is an arithmetic number, because the mean of its divisors is an integer number (5407308672).

Almost surely, 2^231400044400 is an apocalyptic number.

231400044400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

231400044400 is an abundant number, since it is smaller than the sum of its proper divisors (417476996240).

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

231400044400 is a wasteful number, since it uses less digits than its factorization.

231400044400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1758431 (or 1758420 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 22.

Adding to 231400044400 its reverse (4440004132), we get a palindrome (235840048532).

The spelling of 231400044400 in words is "two hundred thirty-one billion, four hundred million, forty-four thousand, four hundred".