115640432 has 10 divisors (see below), whose sum is σ = 224053368. Its totient is φ = 57820208.

The previous prime is 115640417. The next prime is 115640489. The reversal of 115640432 is 234046511.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3613748 + ... + 3613779.

Almost surely, 2^115640432 is an apocalyptic number.

It is an amenable number.

115640432 is a deficient number, since it is larger than the sum of its proper divisors (108412936).

115640432 is an equidigital number, since it uses as much as digits as its factorization.

115640432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7227535 (or 7227529 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 115640432 is about 10753.6241332864. The cubic root of 115640432 is about 487.1954628331.

Adding to 115640432 its reverse (234046511), we get a palindrome (349686943).

The spelling of 115640432 in words is "one hundred fifteen million, six hundred forty thousand, four hundred thirty-two".