118820988 has 72 divisors (see below), whose sum is σ = 352877616. Its totient is φ = 33235200.

The previous prime is 118820987. The next prime is 118821067. The reversal of 118820988 is 889028811.

It is a super-2 number, since 2×118820988² = 28236854378592288, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (118820983) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6393 + ... + 16688.

It is an arithmetic number, because the mean of its divisors is an integer number (4901078).

Almost surely, 2^118820988 is an apocalyptic number.

118820988 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

118820988 is an abundant number, since it is smaller than the sum of its proper divisors (234056628).

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

118820988 is a wasteful number, since it uses less digits than its factorization.

118820988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23115 (or 23110 counting only the distinct ones).

The product of its (nonzero) digits is 73728, while the sum is 45.

The square root of 118820988 is about 10900.5040250440. The cubic root of 118820988 is about 491.6217100073.

The spelling of 118820988 in words is "one hundred eighteen million, eight hundred twenty thousand, nine hundred eighty-eight".