115664740 has 24 divisors (see below), whose sum is σ = 245404152. Its totient is φ = 45788160.

The previous prime is 115664729. The next prime is 115664743. The reversal of 115664740 is 47466511.

It can be written as a sum of positive squares in 4 ways, for example, as 24920064 + 90744676 = 4992^2 + 9526^2 .

It is a junction number, because it is equal to n+sod(n) for n = 115664696 and 115664705.

It is not an unprimeable number, because it can be changed into a prime (115664743) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27871 + ... + 31750.

It is an arithmetic number, because the mean of its divisors is an integer number (10225173).

Almost surely, 2^115664740 is an apocalyptic number.

115664740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

115664740 is an abundant number, since it is smaller than the sum of its proper divisors (129739412).

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

115664740 is a wasteful number, since it uses less digits than its factorization.

115664740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59727 (or 59725 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 34.

The square root of 115664740 is about 10754.7542975188. The cubic root of 115664740 is about 487.2295971389.

The spelling of 115664740 in words is "one hundred fifteen million, six hundred sixty-four thousand, seven hundred forty".