118542380 has 24 divisors (see below), whose sum is σ = 271570320. Its totient is φ = 43106240.

The previous prime is 118542373. The next prime is 118542383. The reversal of 118542380 is 83245811.

It is not an unprimeable number, because it can be changed into a prime (118542383) 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, 269195 + ... + 269634.

It is an arithmetic number, because the mean of its divisors is an integer number (11315430).

Almost surely, 2^118542380 is an apocalyptic number.

118542380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

118542380 is an abundant number, since it is smaller than the sum of its proper divisors (153027940).

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

118542380 is a wasteful number, since it uses less digits than its factorization.

118542380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 538849 (or 538847 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 32.

The square root of 118542380 is about 10887.7169323968. The cubic root of 118542380 is about 491.2371625252.

The spelling of 118542380 in words is "one hundred eighteen million, five hundred forty-two thousand, three hundred eighty".