118455440 has 80 divisors (see below), whose sum is σ = 282839040. Its totient is φ = 46126080.

The previous prime is 118455427. The next prime is 118455461. The reversal of 118455440 is 44554811.

It is a tau number, because it is divible by the number of its divisors (80).

It is a junction number, because it is equal to n+sod(n) for n = 118455397 and 118455406.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 904175 + ... + 904305.

It is an arithmetic number, because the mean of its divisors is an integer number (3535488).

Almost surely, 2^118455440 is an apocalyptic number.

118455440 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 118455440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (141419520).

118455440 is an abundant number, since it is smaller than the sum of its proper divisors (164383600).

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

118455440 is a wasteful number, since it uses less digits than its factorization.

118455440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 360 (or 354 counting only the distinct ones).

The product of its (nonzero) digits is 12800, while the sum is 32.

The square root of 118455440 is about 10883.7236275091. The cubic root of 118455440 is about 491.1170406357.

The spelling of 118455440 in words is "one hundred eighteen million, four hundred fifty-five thousand, four hundred forty".