118621698 has 64 divisors (see below), whose sum is σ = 263233152. Its totient is φ = 35412480.

The previous prime is 118621697. The next prime is 118621703. The reversal of 118621698 is 896126811.

It is a super-2 number, since 2×118621698² = 28142214472806408, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (118621697) 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, 508990 + ... + 509222.

It is an arithmetic number, because the mean of its divisors is an integer number (4113018).

Almost surely, 2^118621698 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 118621698, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (131616576).

118621698 is an abundant number, since it is smaller than the sum of its proper divisors (144611454).

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

118621698 is a wasteful number, since it uses less digits than its factorization.

118621698 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 419.

The product of its digits is 41472, while the sum is 42.

The square root of 118621698 is about 10891.3588683874. The cubic root of 118621698 is about 491.3467021461.

The spelling of 118621698 in words is "one hundred eighteen million, six hundred twenty-one thousand, six hundred ninety-eight".