118556440 has 16 divisors (see below), whose sum is σ = 266752080. Its totient is φ = 47422560.

The previous prime is 118556423. The next prime is 118556443. The reversal of 118556440 is 44655811.

It is a junction number, because it is equal to n+sod(n) for n = 118556396 and 118556405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (118556443) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1481916 + ... + 1481995.

It is an arithmetic number, because the mean of its divisors is an integer number (16672005).

Almost surely, 2^118556440 is an apocalyptic number.

118556440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

118556440 is an abundant number, since it is smaller than the sum of its proper divisors (148195640).

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

118556440 is a wasteful number, since it uses less digits than its factorization.

118556440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2963922 (or 2963918 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 34.

The square root of 118556440 is about 10888.3625949910. The cubic root of 118556440 is about 491.2565832068.

The spelling of 118556440 in words is "one hundred eighteen million, five hundred fifty-six thousand, four hundred forty".