118204640 has 96 divisors (see below), whose sum is σ = 294404544. Its totient is φ = 44789760.

The previous prime is 118204633. The next prime is 118204649. The reversal of 118204640 is 46402811.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (118204649) 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, 242477 + ... + 242963.

It is an arithmetic number, because the mean of its divisors is an integer number (3066714).

Almost surely, 2^118204640 is an apocalyptic number.

118204640 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 118204640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (147202272).

118204640 is an abundant number, since it is smaller than the sum of its proper divisors (176199904).

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

118204640 is a wasteful number, since it uses less digits than its factorization.

118204640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 580 (or 572 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 26.

The square root of 118204640 is about 10872.1957303941. The cubic root of 118204640 is about 490.7701895751.

The spelling of 118204640 in words is "one hundred eighteen million, two hundred four thousand, six hundred forty".