18857084 has 12 divisors (see below), whose sum is σ = 33033000. Its totient is φ = 9419088.

The previous prime is 18857081. The next prime is 18857099. The reversal of 18857084 is 48075881.

It is a hoax number, since the sum of its digits (41) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18857081) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4067 + ... + 7365.

It is an arithmetic number, because the mean of its divisors is an integer number (2752750).

Almost surely, 2^18857084 is an apocalyptic number.

It is an amenable number.

18857084 is a deficient number, since it is larger than the sum of its proper divisors (14175916).

18857084 is a wasteful number, since it uses less digits than its factorization.

18857084 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4732 (or 4730 counting only the distinct ones).

The product of its (nonzero) digits is 71680, while the sum is 41.

The square root of 18857084 is about 4342.4744098267. The cubic root of 18857084 is about 266.1694324470.

The spelling of 18857084 in words is "eighteen million, eight hundred fifty-seven thousand, eighty-four".