18930074 has 8 divisors (see below), whose sum is σ = 28538400. Its totient is φ = 9417276.

The previous prime is 18930071. The next prime is 18930077. The reversal of 18930074 is 47003981.

It is an interprime number because it is at equal distance from previous prime (18930071) and next prime (18930077).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 18930074.

It is not an unprimeable number, because it can be changed into a prime (18930071) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 23384 + ... + 24179.

It is an arithmetic number, because the mean of its divisors is an integer number (3567300).

Almost surely, 2^18930074 is an apocalyptic number.

18930074 is a deficient number, since it is larger than the sum of its proper divisors (9608326).

18930074 is a wasteful number, since it uses less digits than its factorization.

18930074 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47764.

The product of its (nonzero) digits is 6048, while the sum is 32.

The square root of 18930074 is about 4350.8704876151. The cubic root of 18930074 is about 266.5124104388.

The spelling of 18930074 in words is "eighteen million, nine hundred thirty thousand, seventy-four".