18949676 has 12 divisors (see below), whose sum is σ = 33289872. Its totient is φ = 9438288.

The previous prime is 18949663. The next prime is 18949681. The reversal of 18949676 is 67694981.

It is an alternating number because its digits alternate between odd and even.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7955 + ... + 10058.

It is an arithmetic number, because the mean of its divisors is an integer number (2774156).

Almost surely, 2^18949676 is an apocalyptic number.

It is an amenable number.

18949676 is a deficient number, since it is larger than the sum of its proper divisors (14340196).

18949676 is a wasteful number, since it uses less digits than its factorization.

18949676 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18280 (or 18278 counting only the distinct ones).

The product of its digits is 653184, while the sum is 50.

The square root of 18949676 is about 4353.1225574293. The cubic root of 18949676 is about 266.6043694754.

The spelling of 18949676 in words is "eighteen million, nine hundred forty-nine thousand, six hundred seventy-six".