18775912 has 16 divisors (see below), whose sum is σ = 36735840. Its totient is φ = 8979696.

The previous prime is 18775903. The next prime is 18775919. The reversal of 18775912 is 21957781.

It is not an unprimeable number, because it can be changed into a prime (18775919) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50838 + ... + 51205.

It is an arithmetic number, because the mean of its divisors is an integer number (2295990).

Almost surely, 2^18775912 is an apocalyptic number.

It is an amenable number.

18775912 is a deficient number, since it is larger than the sum of its proper divisors (17959928).

18775912 is a wasteful number, since it uses less digits than its factorization.

18775912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102072 (or 102068 counting only the distinct ones).

The product of its digits is 35280, while the sum is 40.

The square root of 18775912 is about 4333.1180459341. The cubic root of 18775912 is about 265.7869664471.

The spelling of 18775912 in words is "eighteen million, seven hundred seventy-five thousand, nine hundred twelve".