118799640 has 48 divisors (see below), whose sum is σ = 386100000. Its totient is φ = 31679808.

The previous prime is 118799633. The next prime is 118799693. The reversal of 118799640 is 46997811.

It is a happy number.

It is a super-2 number, since 2×118799640² = 28226708928259200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 164640 + ... + 165359.

It is an arithmetic number, because the mean of its divisors is an integer number (8043750).

Almost surely, 2^118799640 is an apocalyptic number.

118799640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

118799640 is an abundant number, since it is smaller than the sum of its proper divisors (267300360).

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

118799640 is a wasteful number, since it uses less digits than its factorization.

118799640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 330016 (or 330009 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 45.

The square root of 118799640 is about 10899.5247602820. The cubic root of 118799640 is about 491.5922658015.

The spelling of 118799640 in words is "one hundred eighteen million, seven hundred ninety-nine thousand, six hundred forty".