18489654 has 32 divisors (see below), whose sum is σ = 42877440. Its totient is φ = 5894856.

The previous prime is 18489643. The next prime is 18489673. The reversal of 18489654 is 45698481.

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, 6202 + ... + 8685.

It is an arithmetic number, because the mean of its divisors is an integer number (1339920).

Almost surely, 2^18489654 is an apocalyptic number.

18489654 is an abundant number, since it is smaller than the sum of its proper divisors (24387786).

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

18489654 is a wasteful number, since it uses less digits than its factorization.

18489654 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14921 (or 14915 counting only the distinct ones).

The product of its digits is 276480, while the sum is 45.

The square root of 18489654 is about 4299.9597672536. The cubic root of 18489654 is about 264.4293118134.

The spelling of 18489654 in words is "eighteen million, four hundred eighty-nine thousand, six hundred fifty-four".