118551940 has 24 divisors (see below), whose sum is σ = 268110360. Its totient is φ = 43772928.

The previous prime is 118551899. The next prime is 118551941. The reversal of 118551940 is 49155811.

It can be written as a sum of positive squares in 4 ways, for example, as 2214144 + 116337796 = 1488^2 + 10786^2 .

It is a junction number, because it is equal to n+sod(n) for n = 118551896 and 118551905.

It is not an unprimeable number, because it can be changed into a prime (118551941) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 227725 + ... + 228244.

It is an arithmetic number, because the mean of its divisors is an integer number (11171265).

Almost surely, 2^118551940 is an apocalyptic number.

118551940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

118551940 is an abundant number, since it is smaller than the sum of its proper divisors (149558420).

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

118551940 is a wasteful number, since it uses less digits than its factorization.

118551940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 455991 (or 455989 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 34.

The square root of 118551940 is about 10888.1559503894. The cubic root of 118551940 is about 491.2503676508.

The spelling of 118551940 in words is "one hundred eighteen million, five hundred fifty-one thousand, nine hundred forty".