18930794 has 24 divisors (see below), whose sum is σ = 30757860. Its totient is φ = 8727488.

The previous prime is 18930787. The next prime is 18930803. The reversal of 18930794 is 49703981.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 17330569 + 1600225 = 4163^2 + 1265^2 .

It is a super-2 number, since 2×18930794² = 716749922940872, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 30374 + ... + 30990.

Almost surely, 2^18930794 is an apocalyptic number.

18930794 is a deficient number, since it is larger than the sum of its proper divisors (11827066).

18930794 is a wasteful number, since it uses less digits than its factorization.

18930794 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 694 (or 671 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 41.

The square root of 18930794 is about 4350.9532288913. The cubic root of 18930794 is about 266.5157893040.

The spelling of 18930794 in words is "eighteen million, nine hundred thirty thousand, seven hundred ninety-four".