18983694 has 24 divisors (see below), whose sum is σ = 39696552. Its totient is φ = 6051760.

The previous prime is 18983693. The next prime is 18983707. The reversal of 18983694 is 49638981.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18983693) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 184 + ... + 6164.

It is an arithmetic number, because the mean of its divisors is an integer number (1654023).

Almost surely, 2^18983694 is an apocalyptic number.

18983694 is an abundant number, since it is smaller than the sum of its proper divisors (20712858).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

18983694 is a wasteful number, since it uses less digits than its factorization.

18983694 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6032 (or 6009 counting only the distinct ones).

The product of its digits is 373248, while the sum is 48.

The square root of 18983694 is about 4357.0281155852. The cubic root of 18983694 is about 266.7638080118.

The spelling of 18983694 in words is "eighteen million, nine hundred eighty-three thousand, six hundred ninety-four".