18289084 has 12 divisors (see below), whose sum is σ = 34915608. Its totient is φ = 8313200.

The previous prime is 18289069. The next prime is 18289091. The reversal of 18289084 is 48098281.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 207787 + ... + 207874.

It is an arithmetic number, because the mean of its divisors is an integer number (2909634).

Almost surely, 2^18289084 is an apocalyptic number.

It is an amenable number.

18289084 is a deficient number, since it is larger than the sum of its proper divisors (16626524).

18289084 is a wasteful number, since it uses less digits than its factorization.

18289084 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 415676 (or 415674 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 40.

The square root of 18289084 is about 4276.5738623342. The cubic root of 18289084 is about 263.4696845896.

The spelling of 18289084 in words is "eighteen million, two hundred eighty-nine thousand, eighty-four".