18853894 has 8 divisors (see below), whose sum is σ = 28402920. Its totient is φ = 9386256.

The previous prime is 18853883. The next prime is 18853931. The reversal of 18853894 is 49835881.

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

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 19764 + ... + 20695.

It is an arithmetic number, because the mean of its divisors is an integer number (3550365).

Almost surely, 2^18853894 is an apocalyptic number.

18853894 is a deficient number, since it is larger than the sum of its proper divisors (9549026).

18853894 is a wasteful number, since it uses less digits than its factorization.

18853894 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40694.

The product of its digits is 276480, while the sum is 46.

The square root of 18853894 is about 4342.1070921846. The cubic root of 18853894 is about 266.1544225552.

The spelling of 18853894 in words is "eighteen million, eight hundred fifty-three thousand, eight hundred ninety-four".