118591020 has 48 divisors (see below), whose sum is σ = 368951520. Its totient is φ = 31624128.

The previous prime is 118591009. The next prime is 118591079. The reversal of 118591020 is 20195811.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 109267 + ... + 110346.

It is an arithmetic number, because the mean of its divisors is an integer number (7686490).

Almost surely, 2^118591020 is an apocalyptic number.

118591020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

118591020 is an abundant number, since it is smaller than the sum of its proper divisors (250360500).

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

118591020 is a wasteful number, since it uses less digits than its factorization.

118591020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 219631 (or 219623 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 27.

The square root of 118591020 is about 10889.9504131102. The cubic root of 118591020 is about 491.3043410547.

The spelling of 118591020 in words is "one hundred eighteen million, five hundred ninety-one thousand, twenty".