18830394 has 40 divisors (see below), whose sum is σ = 46034208. Its totient is φ = 5705640.

The previous prime is 18830389. The next prime is 18830401. The reversal of 18830394 is 49303881.

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 in 19 ways as a sum of consecutive naturals, for example, 3502 + ... + 7065.

Almost surely, 2^18830394 is an apocalyptic number.

18830394 is an abundant number, since it is smaller than the sum of its proper divisors (27203814).

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

18830394 is a wasteful number, since it uses less digits than its factorization.

18830394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10592 (or 10583 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The square root of 18830394 is about 4339.4001889662. The cubic root of 18830394 is about 266.0437959056.

The spelling of 18830394 in words is "eighteen million, eight hundred thirty thousand, three hundred ninety-four".