18382046 has 4 divisors (see below), whose sum is σ = 27573072. Its totient is φ = 9191022.

The previous prime is 18382033. The next prime is 18382061. The reversal of 18382046 is 64028381.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×18382046² = 675799230292232, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4595510 + ... + 4595513.

It is an arithmetic number, because the mean of its divisors is an integer number (6893268).

Almost surely, 2^18382046 is an apocalyptic number.

18382046 is a deficient number, since it is larger than the sum of its proper divisors (9191026).

18382046 is an equidigital number, since it uses as much as digits as its factorization.

18382046 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9191025.

The product of its (nonzero) digits is 9216, while the sum is 32.

The square root of 18382046 is about 4287.4288332286. The cubic root of 18382046 is about 263.9153290606.

The spelling of 18382046 in words is "eighteen million, three hundred eighty-two thousand, forty-six".