18934634 has 16 divisors (see below), whose sum is σ = 30585600. Its totient is φ = 8758464.

The previous prime is 18934607. The next prime is 18934637. The reversal of 18934634 is 43643981.

It is not an unprimeable number, because it can be changed into a prime (18934637) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2714 + ... + 6725.

It is an arithmetic number, because the mean of its divisors is an integer number (1911600).

Almost surely, 2^18934634 is an apocalyptic number.

18934634 is a deficient number, since it is larger than the sum of its proper divisors (11650966).

18934634 is a wasteful number, since it uses less digits than its factorization.

18934634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9517.

The product of its digits is 62208, while the sum is 38.

The square root of 18934634 is about 4351.3944891264. The cubic root of 18934634 is about 266.5338084714.

The spelling of 18934634 in words is "eighteen million, nine hundred thirty-four thousand, six hundred thirty-four".