18974834 has 8 divisors (see below), whose sum is σ = 28531440. Its totient is φ = 9464356.

The previous prime is 18974833. The next prime is 18974881. The reversal of 18974834 is 43847981.

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

It is not an unprimeable number, because it can be changed into a prime (18974833) 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, 10484 + ... + 12159.

It is an arithmetic number, because the mean of its divisors is an integer number (3566430).

Almost surely, 2^18974834 is an apocalyptic number.

18974834 is a deficient number, since it is larger than the sum of its proper divisors (9556606).

18974834 is a wasteful number, since it uses less digits than its factorization.

18974834 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23064.

The product of its digits is 193536, while the sum is 44.

The square root of 18974834 is about 4356.0112488376. The cubic root of 18974834 is about 266.7223005452.

The spelling of 18974834 in words is "eighteen million, nine hundred seventy-four thousand, eight hundred thirty-four".