118399428 has 96 divisors (see below), whose sum is σ = 353024000. Its totient is φ = 33615648.

The previous prime is 118399399. The next prime is 118399429. The reversal of 118399428 is 824993811.

It is not an unprimeable number, because it can be changed into a prime (118399429) 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, 150051 + ... + 150837.

Almost surely, 2^118399428 is an apocalyptic number.

118399428 is a gapful number since it is divisible by the number (18) 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 118399428, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (176512000).

118399428 is an abundant number, since it is smaller than the sum of its proper divisors (234624572).

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

118399428 is a wasteful number, since it uses less digits than its factorization.

118399428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1006 (or 998 counting only the distinct ones).

The product of its digits is 124416, while the sum is 45.

The square root of 118399428 is about 10881.1501230339. The cubic root of 118399428 is about 491.0396197236.

The spelling of 118399428 in words is "one hundred eighteen million, three hundred ninety-nine thousand, four hundred twenty-eight".