18063894 has 32 divisors (see below), whose sum is σ = 38435040. Its totient is φ = 5640192.

The previous prime is 18063887. The next prime is 18063907. The reversal of 18063894 is 49836081.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41502 + ... + 41934.

It is an arithmetic number, because the mean of its divisors is an integer number (1201095).

Almost surely, 2^18063894 is an apocalyptic number.

18063894 is an abundant number, since it is smaller than the sum of its proper divisors (20371146).

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

18063894 is a wasteful number, since it uses less digits than its factorization.

18063894 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 864.

The product of its (nonzero) digits is 41472, while the sum is 39.

The square root of 18063894 is about 4250.1639968359. The cubic root of 18063894 is about 262.3838651807.

The spelling of 18063894 in words is "eighteen million, sixty-three thousand, eight hundred ninety-four".