118191628 has 12 divisors (see below), whose sum is σ = 217721560. Its totient is φ = 55985472.

The previous prime is 118191607. The next prime is 118191631. The reversal of 118191628 is 826191811.

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 777501 + ... + 777652.

Almost surely, 2^118191628 is an apocalyptic number.

It is an amenable number.

118191628 is a deficient number, since it is larger than the sum of its proper divisors (99529932).

118191628 is a wasteful number, since it uses less digits than its factorization.

118191628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1555176 (or 1555174 counting only the distinct ones).

The product of its digits is 6912, while the sum is 37.

The square root of 118191628 is about 10871.5973067438. The cubic root of 118191628 is about 490.7521808741.

The spelling of 118191628 in words is "one hundred eighteen million, one hundred ninety-one thousand, six hundred twenty-eight".