115398864 has 160 divisors (see below), whose sum is σ = 391086080. Its totient is φ = 31881600.

The previous prime is 115398853. The next prime is 115398869. The reversal of 115398864 is 468893511.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115398869) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 93129 + ... + 94359.

It is an arithmetic number, because the mean of its divisors is an integer number (2444288).

Almost surely, 2^115398864 is an apocalyptic number.

115398864 is a gapful number since it is divisible by the number (14) 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 115398864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (195543040).

115398864 is an abundant number, since it is smaller than the sum of its proper divisors (275687216).

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

115398864 is a wasteful number, since it uses less digits than its factorization.

115398864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1286 (or 1274 counting only the distinct ones).

The product of its digits is 207360, while the sum is 45.

The square root of 115398864 is about 10742.3863270690. The cubic root of 115398864 is about 486.8559827246.

The spelling of 115398864 in words is "one hundred fifteen million, three hundred ninety-eight thousand, eight hundred sixty-four".