118788428 has 24 divisors (see below), whose sum is σ = 227164224. Its totient is φ = 53902800.

The previous prime is 118788413. The next prime is 118788457. The reversal of 118788428 is 824887811.

It is a super-2 number, since 2×118788428² = 28221381253422368, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28451 + ... + 32357.

It is an arithmetic number, because the mean of its divisors is an integer number (9465176).

Almost surely, 2^118788428 is an apocalyptic number.

It is an amenable number.

118788428 is a deficient number, since it is larger than the sum of its proper divisors (108375796).

118788428 is a wasteful number, since it uses less digits than its factorization.

118788428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4613 (or 4611 counting only the distinct ones).

The product of its digits is 229376, while the sum is 47.

The square root of 118788428 is about 10899.0104137945. The cubic root of 118788428 is about 491.5768002499.

The spelling of 118788428 in words is "one hundred eighteen million, seven hundred eighty-eight thousand, four hundred twenty-eight".