118622728 has 24 divisors (see below), whose sum is σ = 258731550. Its totient is φ = 50838144.

The previous prime is 118622711. The next prime is 118622729. The reversal of 118622728 is 827226811.

It can be written as a sum of positive squares in only one way, i.e., 86155524 + 32467204 = 9282^2 + 5698^2 .

It is not an unprimeable number, because it can be changed into a prime (118622729) 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, 150913 + ... + 151696.

Almost surely, 2^118622728 is an apocalyptic number.

It is an amenable number.

118622728 is an abundant number, since it is smaller than the sum of its proper divisors (140108822).

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

118622728 is a wasteful number, since it uses less digits than its factorization.

118622728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 302629 (or 302618 counting only the distinct ones).

The product of its digits is 21504, while the sum is 37.

The square root of 118622728 is about 10891.4061534772. The cubic root of 118622728 is about 491.3481242738.

The spelling of 118622728 in words is "one hundred eighteen million, six hundred twenty-two thousand, seven hundred twenty-eight".