18874046 has 8 divisors (see below), whose sum is σ = 29976480. Its totient is φ = 8881888.

The previous prime is 18874039. The next prime is 18874057. The reversal of 18874046 is 64047881.

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

It is a super-2 number, since 2×18874046² = 712459224820232, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 277526 + ... + 277593.

It is an arithmetic number, because the mean of its divisors is an integer number (3747060).

Almost surely, 2^18874046 is an apocalyptic number.

18874046 is a deficient number, since it is larger than the sum of its proper divisors (11102434).

18874046 is a wasteful number, since it uses less digits than its factorization.

18874046 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 555138.

The product of its (nonzero) digits is 43008, while the sum is 38.

The square root of 18874046 is about 4344.4270047959. The cubic root of 18874046 is about 266.2492152475.

The spelling of 18874046 in words is "eighteen million, eight hundred seventy-four thousand, forty-six".