18808874 has 8 divisors (see below), whose sum is σ = 32243808. Its totient is φ = 8060940.

The previous prime is 18808859. The next prime is 18808877. The reversal of 18808874 is 47880881.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×18808874² = 707547482295752, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (18808877) 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, 671732 + ... + 671759.

It is an arithmetic number, because the mean of its divisors is an integer number (4030476).

Almost surely, 2^18808874 is an apocalyptic number.

18808874 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

18808874 is a deficient number, since it is larger than the sum of its proper divisors (13434934).

18808874 is a wasteful number, since it uses less digits than its factorization.

18808874 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1343500.

The product of its (nonzero) digits is 114688, while the sum is 44.

The square root of 18808874 is about 4336.9198747498. The cubic root of 18808874 is about 265.9424093763.

The spelling of 18808874 in words is "eighteen million, eight hundred eight thousand, eight hundred seventy-four".