118481280 has 128 divisors (see below), whose sum is σ = 394225920. Its totient is φ = 30210048.

The previous prime is 118481261. The next prime is 118481281. The reversal of 118481280 is 82184811.

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

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (118481281) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 42819 + ... + 45501.

It is an arithmetic number, because the mean of its divisors is an integer number (3079890).

Almost surely, 2^118481280 is an apocalyptic number.

118481280 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 118481280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (197112960).

118481280 is an abundant number, since it is smaller than the sum of its proper divisors (275744640).

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

118481280 is a wasteful number, since it uses less digits than its factorization.

118481280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2728 (or 2716 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 33.

The square root of 118481280 is about 10884.9106565006. The cubic root of 118481280 is about 491.1527489765.

The spelling of 118481280 in words is "one hundred eighteen million, four hundred eighty-one thousand, two hundred eighty".