18830564 has 6 divisors (see below), whose sum is σ = 32953494. Its totient is φ = 9415280.

The previous prime is 18830533. The next prime is 18830573. The reversal of 18830564 is 46503881.

It can be written as a sum of positive squares in only one way, i.e., 13032100 + 5798464 = 3610^2 + 2408^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2353817 + ... + 2353824.

It is an arithmetic number, because the mean of its divisors is an integer number (5492249).

Almost surely, 2^18830564 is an apocalyptic number.

It is an amenable number.

18830564 is a deficient number, since it is larger than the sum of its proper divisors (14122930).

18830564 is a wasteful number, since it uses less digits than its factorization.

18830564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4707645 (or 4707643 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 35.

The square root of 18830564 is about 4339.4197768826. The cubic root of 18830564 is about 266.0445965139.

The spelling of 18830564 in words is "eighteen million, eight hundred thirty thousand, five hundred sixty-four".