118432872 has 24 divisors (see below), whose sum is σ = 320755890. Its totient is φ = 39477600.

The previous prime is 118432849. The next prime is 118432877. The reversal of 118432872 is 278234811.

It can be written as a sum of positive squares in only one way, i.e., 98128836 + 20304036 = 9906^2 + 4506^2 .

It is a tau number, because it is divible by the number of its divisors (24).

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

It is not an unprimeable number, because it can be changed into a prime (118432877) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 822379 + ... + 822522.

Almost surely, 2^118432872 is an apocalyptic number.

118432872 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

118432872 is an abundant number, since it is smaller than the sum of its proper divisors (202323018).

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

118432872 is a wasteful number, since it uses less digits than its factorization.

118432872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1644913 (or 1644906 counting only the distinct ones).

The product of its digits is 21504, while the sum is 36.

The square root of 118432872 is about 10882.6868006021. The cubic root of 118432872 is about 491.0858496289.

The spelling of 118432872 in words is "one hundred eighteen million, four hundred thirty-two thousand, eight hundred seventy-two".