115988644 has 12 divisors (see below), whose sum is σ = 204843100. Its totient is φ = 57462048.

The previous prime is 115988611. The next prime is 115988647. The reversal of 115988644 is 446889511.

It can be written as a sum of positive squares in 2 ways, for example, as 94828644 + 21160000 = 9738^2 + 4600^2 .

It is a junction number, because it is equal to n+sod(n) for n = 115988594 and 115988603.

It is not an unprimeable number, because it can be changed into a prime (115988647) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 132579 + ... + 133450.

Almost surely, 2^115988644 is an apocalyptic number.

It is an amenable number.

115988644 is a deficient number, since it is larger than the sum of its proper divisors (88854456).

115988644 is a wasteful number, since it uses less digits than its factorization.

115988644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 266142 (or 266140 counting only the distinct ones).

The product of its digits is 276480, while the sum is 46.

The square root of 115988644 is about 10769.8024123008. The cubic root of 115988644 is about 487.6839808753.

The spelling of 115988644 in words is "one hundred fifteen million, nine hundred eighty-eight thousand, six hundred forty-four".