118861440 has 128 divisors (see below), whose sum is σ = 391288320. Its totient is φ = 30658560.

The previous prime is 118861439. The next prime is 118861451. The reversal of 118861440 is 44168811.

It is a tau number, because it is divible by the number of its divisors (128).

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, 58522 + ... + 60518.

It is an arithmetic number, because the mean of its divisors is an integer number (3056940).

Almost surely, 2^118861440 is an apocalyptic number.

118861440 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 118861440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (195644160).

118861440 is an abundant number, since it is smaller than the sum of its proper divisors (272426880).

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

118861440 is a wasteful number, since it uses less digits than its factorization.

118861440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2050 (or 2038 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 33.

The square root of 118861440 is about 10902.3593776760. The cubic root of 118861440 is about 491.6774937129.

The spelling of 118861440 in words is "one hundred eighteen million, eight hundred sixty-one thousand, four hundred forty".