118440690 has 64 divisors (see below), whose sum is σ = 292035456. Its totient is φ = 30730752.

The previous prime is 118440689. The next prime is 118440691. The reversal of 118440690 is 96044811.

It is an interprime number because it is at equal distance from previous prime (118440689) and next prime (118440691).

It is a super-2 number, since 2×118440690² = 28056394095352200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (118440691) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 258942 + ... + 259398.

It is an arithmetic number, because the mean of its divisors is an integer number (4563054).

Almost surely, 2^118440690 is an apocalyptic number.

118440690 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 118440690, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (146017728).

118440690 is an abundant number, since it is smaller than the sum of its proper divisors (173594766).

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

118440690 is a wasteful number, since it uses less digits than its factorization.

118440690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 683.

The product of its (nonzero) digits is 6912, while the sum is 33.

The square root of 118440690 is about 10883.0459890602. The cubic root of 118440690 is about 491.0966552569.

The spelling of 118440690 in words is "one hundred eighteen million, four hundred forty thousand, six hundred ninety".