115402880 has 32 divisors (see below), whose sum is σ = 275886540. Its totient is φ = 46160896.

The previous prime is 115402871. The next prime is 115402897. The reversal of 115402880 is 88204511.

It can be written as a sum of positive squares in 2 ways, for example, as 101445184 + 13957696 = 10072^2 + 3736^2 .

It is a tau number, because it is divible by the number of its divisors (32).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 89519 + ... + 90798.

Almost surely, 2^115402880 is an apocalyptic number.

115402880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

115402880 is an abundant number, since it is smaller than the sum of its proper divisors (160483660).

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

115402880 is an equidigital number, since it uses as much as digits as its factorization.

115402880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180336 (or 180324 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 29.

The square root of 115402880 is about 10742.5732485285. The cubic root of 115402880 is about 486.8616303566.

The spelling of 115402880 in words is "one hundred fifteen million, four hundred two thousand, eight hundred eighty".