18886074 has 8 divisors (see below), whose sum is σ = 37772160. Its totient is φ = 6295356.

The previous prime is 18886061. The next prime is 18886079. The reversal of 18886074 is 47068881.

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

18886074 is an admirable number.

It is a super-2 number, since 2×18886074² = 713367582266952, which contains 22 as substring.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (18886079) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 1573834 + ... + 1573845.

It is an arithmetic number, because the mean of its divisors is an integer number (4721520).

Almost surely, 2^18886074 is an apocalyptic number.

18886074 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

18886074 is a wasteful number, since it uses less digits than its factorization.

18886074 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3147684.

The product of its (nonzero) digits is 86016, while the sum is 42.

The square root of 18886074 is about 4345.8110865522. The cubic root of 18886074 is about 266.3057614259.

The spelling of 18886074 in words is "eighteen million, eight hundred eighty-six thousand, seventy-four".