118286420 has 24 divisors (see below), whose sum is σ = 283887744. Its totient is φ = 40555296.

The previous prime is 118286393. The next prime is 118286431. The reversal of 118286420 is 24682811.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 422312 + ... + 422591.

It is an arithmetic number, because the mean of its divisors is an integer number (11828656).

Almost surely, 2^118286420 is an apocalyptic number.

118286420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

118286420 is an abundant number, since it is smaller than the sum of its proper divisors (165601324).

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

118286420 is a wasteful number, since it uses less digits than its factorization.

118286420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 844919 (or 844917 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 32.

The square root of 118286420 is about 10875.9560499296. The cubic root of 118286420 is about 490.8833434349.

The spelling of 118286420 in words is "one hundred eighteen million, two hundred eighty-six thousand, four hundred twenty".