118297920 has 112 divisors (see below), whose sum is σ = 404530560. Its totient is φ = 29116416.

The previous prime is 118297903. The next prime is 118297969. The reversal of 118297920 is 29792811.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

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, 7741 + ... + 17219.

It is an arithmetic number, because the mean of its divisors is an integer number (3611880).

Almost surely, 2^118297920 is an apocalyptic number.

118297920 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 118297920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (202265280).

118297920 is an abundant number, since it is smaller than the sum of its proper divisors (286232640).

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

118297920 is a wasteful number, since it uses less digits than its factorization.

118297920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9512 (or 9502 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 39.

The square root of 118297920 is about 10876.4847262339. The cubic root of 118297920 is about 490.8992510810.

The spelling of 118297920 in words is "one hundred eighteen million, two hundred ninety-seven thousand, nine hundred twenty".