18894004 has 24 divisors (see below), whose sum is σ = 36142848. Its totient is φ = 8603520.

The previous prime is 18893981. The next prime is 18894019. The reversal of 18894004 is 40049881.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2374 + ... + 6589.

It is an arithmetic number, because the mean of its divisors is an integer number (1505952).

Almost surely, 2^18894004 is an apocalyptic number.

It is an amenable number.

18894004 is a deficient number, since it is larger than the sum of its proper divisors (17248844).

18894004 is a wasteful number, since it uses less digits than its factorization.

18894004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9015 (or 9013 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 34.

The square root of 18894004 is about 4346.7233636384. The cubic root of 18894004 is about 266.3430289064.

The spelling of 18894004 in words is "eighteen million, eight hundred ninety-four thousand, four".