115431400 has 96 divisors (see below), whose sum is σ = 314354880. Its totient is φ = 38592000.

The previous prime is 115431391. The next prime is 115431413. The reversal of 115431400 is 4134511.

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, 56395 + ... + 58405.

It is an arithmetic number, because the mean of its divisors is an integer number (3274530).

Almost surely, 2^115431400 is an apocalyptic number.

115431400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 115431400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (157177440).

115431400 is an abundant number, since it is smaller than the sum of its proper divisors (198923480).

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

115431400 is a wasteful number, since it uses less digits than its factorization.

115431400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2075 (or 2066 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 115431400 is about 10743.9005952215. The cubic root of 115431400 is about 486.9017337752.

Adding to 115431400 its reverse (4134511), we get a palindrome (119565911).

The spelling of 115431400 in words is "one hundred fifteen million, four hundred thirty-one thousand, four hundred".