118457680 has 80 divisors (see below), whose sum is σ = 302284224. Its totient is φ = 42813440.

The previous prime is 118457671. The next prime is 118457681. The reversal of 118457680 is 86754811.

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

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (118457681) 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, 199464 + ... + 200056.

Almost surely, 2^118457680 is an apocalyptic number.

118457680 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 118457680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (151142112).

118457680 is an abundant number, since it is smaller than the sum of its proper divisors (183826544).

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

118457680 is a wasteful number, since it uses less digits than its factorization.

118457680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 844 (or 838 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 40.

The square root of 118457680 is about 10883.8265329800. The cubic root of 118457680 is about 491.1201363012.

The spelling of 118457680 in words is "one hundred eighteen million, four hundred fifty-seven thousand, six hundred eighty".