118628280 has 64 divisors (see below), whose sum is σ = 395431200. Its totient is φ = 31633920.

The previous prime is 118628239. The next prime is 118628281. The reversal of 118628280 is 82826811.

118628280 is a `hidden beast` number, since 1 + 1 + 8 + 628 + 28 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (118628281) 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, 53841 + ... + 56000.

Almost surely, 2^118628280 is an apocalyptic number.

118628280 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

118628280 is an abundant number, since it is smaller than the sum of its proper divisors (276802920).

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

118628280 is a wasteful number, since it uses less digits than its factorization.

118628280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109861 (or 109851 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 36.

The square root of 118628280 is about 10891.6610303479. The cubic root of 118628280 is about 491.3557898150.

The spelling of 118628280 in words is "one hundred eighteen million, six hundred twenty-eight thousand, two hundred eighty".