118497280 has 112 divisors (see below), whose sum is σ = 311408064. Its totient is φ = 42926080.

The previous prime is 118497271. The next prime is 118497287. The reversal of 118497280 is 82794811.

It is a happy number.

It is a super-3 number, since 3×118497280³ (a number of 25 digits) contains 333 as substring.

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

It is not an unprimeable number, because it can be changed into a prime (118497287) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 450429 + ... + 450691.

Almost surely, 2^118497280 is an apocalyptic number.

118497280 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 118497280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (155704032).

118497280 is an abundant number, since it is smaller than the sum of its proper divisors (192910784).

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

118497280 is an equidigital number, since it uses as much as digits as its factorization.

118497280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 305 (or 281 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 40.

The square root of 118497280 is about 10885.6455940840. The cubic root of 118497280 is about 491.1748568017.

The spelling of 118497280 in words is "one hundred eighteen million, four hundred ninety-seven thousand, two hundred eighty".