118274418 has 56 divisors (see below), whose sum is σ = 277639488. Its totient is φ = 37699992.

The previous prime is 118274407. The next prime is 118274447. The reversal of 118274418 is 814472811.

It is an unprimeable number.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 31771 + ... + 35297.

It is an arithmetic number, because the mean of its divisors is an integer number (4957848).

Almost surely, 2^118274418 is an apocalyptic number.

118274418 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 118274418, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (138819744).

118274418 is an abundant number, since it is smaller than the sum of its proper divisors (159365070).

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

118274418 is an equidigital number, since it uses as much as digits as its factorization.

118274418 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3570 (or 3555 counting only the distinct ones).

The product of its digits is 14336, while the sum is 36.

The square root of 118274418 is about 10875.4042683479. The cubic root of 118274418 is about 490.8667402859.

The spelling of 118274418 in words is "one hundred eighteen million, two hundred seventy-four thousand, four hundred eighteen".