115916438 has 16 divisors (see below), whose sum is σ = 200839824. Its totient is φ = 49589760.

The previous prime is 115916419. The next prime is 115916453. The reversal of 115916438 is 834619511.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 154595 + ... + 155342.

It is an arithmetic number, because the mean of its divisors is an integer number (12552489).

Almost surely, 2^115916438 is an apocalyptic number.

115916438 is a deficient number, since it is larger than the sum of its proper divisors (84923386).

115916438 is a wasteful number, since it uses less digits than its factorization.

115916438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 309967.

The product of its digits is 25920, while the sum is 38.

The square root of 115916438 is about 10766.4496469356. The cubic root of 115916438 is about 487.5827611409.

The spelling of 115916438 in words is "one hundred fifteen million, nine hundred sixteen thousand, four hundred thirty-eight".