118978240 has 56 divisors (see below), whose sum is σ = 299996352. Its totient is φ = 44789760.

The previous prime is 118978231. The next prime is 118978289. The reversal of 118978240 is 42879811.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a junction number, because it is equal to n+sod(n) for n = 118978193 and 118978202.

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, 5496 + ... + 16375.

Almost surely, 2^118978240 is an apocalyptic number.

118978240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

118978240 is an abundant number, since it is smaller than the sum of its proper divisors (181018112).

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

118978240 is a wasteful number, since it uses less digits than its factorization.

118978240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21905 (or 21895 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 40.

The square root of 118978240 is about 10907.7147010728. The cubic root of 118978240 is about 491.8384910637.

The spelling of 118978240 in words is "one hundred eighteen million, nine hundred seventy-eight thousand, two hundred forty".