118404840 has 32 divisors (see below), whose sum is σ = 355214880. Its totient is φ = 31574592.

The previous prime is 118404829. The next prime is 118404857. The reversal of 118404840 is 48404811.

It is a super-2 number, since 2×118404840² = 28039412270851200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 118404798 and 118404807.

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, 493234 + ... + 493473.

It is an arithmetic number, because the mean of its divisors is an integer number (11100465).

Almost surely, 2^118404840 is an apocalyptic number.

118404840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

118404840 is an abundant number, since it is smaller than the sum of its proper divisors (236810040).

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

118404840 is a wasteful number, since it uses less digits than its factorization.

118404840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 986721 (or 986717 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 30.

The square root of 118404840 is about 10881.3988071387. The cubic root of 118404840 is about 491.0471013643.

The spelling of 118404840 in words is "one hundred eighteen million, four hundred four thousand, eight hundred forty".