18673674 has 8 divisors (see below), whose sum is σ = 37347360. Its totient is φ = 6224556.

The previous prime is 18673673. The next prime is 18673679. The reversal of 18673674 is 47637681.

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

18673674 is an admirable number.

It is a super-2 number, since 2×18673674² = 697412201316552, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (18673673) 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, 1556134 + ... + 1556145.

It is an arithmetic number, because the mean of its divisors is an integer number (4668420).

Almost surely, 2^18673674 is an apocalyptic number.

18673674 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.

18673674 is a wasteful number, since it uses less digits than its factorization.

18673674 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3112284.

The product of its digits is 169344, while the sum is 42.

The square root of 18673674 is about 4321.3046641032. The cubic root of 18673674 is about 265.3036699216.

The spelling of 18673674 in words is "eighteen million, six hundred seventy-three thousand, six hundred seventy-four".