118540400 has 120 divisors (see below), whose sum is σ = 321742800. Its totient is φ = 41574400.

The previous prime is 118540399. The next prime is 118540421. The reversal of 118540400 is 4045811.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 127136 + ... + 128064.

It is an arithmetic number, because the mean of its divisors is an integer number (2681190).

Almost surely, 2^118540400 is an apocalyptic number.

118540400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 118540400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (160871400).

118540400 is an abundant number, since it is smaller than the sum of its proper divisors (203202400).

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

118540400 is a wasteful number, since it uses less digits than its factorization.

118540400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 987 (or 976 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 23.

The square root of 118540400 is about 10887.6260038633. The cubic root of 118540400 is about 491.2344274837.

The spelling of 118540400 in words is "one hundred eighteen million, five hundred forty thousand, four hundred".