115338780 has 36 divisors (see below), whose sum is σ = 349861512. Its totient is φ = 30756960.

The previous prime is 115338703. The next prime is 115338787. The reversal of 115338780 is 87833511.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115338787) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 320206 + ... + 320565.

Almost surely, 2^115338780 is an apocalyptic number.

115338780 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

115338780 is an abundant number, since it is smaller than the sum of its proper divisors (234522732).

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

115338780 is a wasteful number, since it uses less digits than its factorization.

115338780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 640786 (or 640781 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 36.

The square root of 115338780 is about 10739.5893776252. The cubic root of 115338780 is about 486.7714719759.

The spelling of 115338780 in words is "one hundred fifteen million, three hundred thirty-eight thousand, seven hundred eighty".