118428512 has 12 divisors (see below), whose sum is σ = 233156196. Its totient is φ = 59214240.

The previous prime is 118428509. The next prime is 118428523. The reversal of 118428512 is 215824811.

It is a Harshad number since it is a multiple of its sum of digits (32), and also a Moran number because the ratio is a prime number: 3700891 = 118428512 / (1 + 1 + 8 + 4 + 2 + 8 + 5 + 1 + 2).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1850414 + ... + 1850477.

It is an arithmetic number, because the mean of its divisors is an integer number (19429683).

Almost surely, 2^118428512 is an apocalyptic number.

It is an amenable number.

118428512 is a deficient number, since it is larger than the sum of its proper divisors (114727684).

118428512 is an equidigital number, since it uses as much as digits as its factorization.

118428512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3700901 (or 3700893 counting only the distinct ones).

The product of its digits is 5120, while the sum is 32.

The square root of 118428512 is about 10882.4864805797. The cubic root of 118428512 is about 491.0798232598.

The spelling of 118428512 in words is "one hundred eighteen million, four hundred twenty-eight thousand, five hundred twelve".