18872674 has 8 divisors (see below), whose sum is σ = 28394028. Its totient is φ = 9408000.

The previous prime is 18872663. The next prime is 18872677. The reversal of 18872674 is 47627881.

It can be written as a sum of positive squares in 2 ways, for example, as 18861649 + 11025 = 4343^2 + 105^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 18872674.

It is not an unprimeable number, because it can be changed into a prime (18872677) 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, 13327 + ... + 14674.

Almost surely, 2^18872674 is an apocalyptic number.

18872674 is a deficient number, since it is larger than the sum of its proper divisors (9521354).

18872674 is a wasteful number, since it uses less digits than its factorization.

18872674 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28340.

The product of its digits is 150528, while the sum is 43.

The square root of 18872674 is about 4344.2690984791. The cubic root of 18872674 is about 266.2427636582.

The spelling of 18872674 in words is "eighteen million, eight hundred seventy-two thousand, six hundred seventy-four".