18093842 has 8 divisors (see below), whose sum is σ = 29228556. Its totient is φ = 8350992.

The previous prime is 18093827. The next prime is 18093931. The reversal of 18093842 is 24839081.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 17547721 + 546121 = 4189^2 + 739^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 347933 + ... + 347984.

Almost surely, 2^18093842 is an apocalyptic number.

18093842 is a deficient number, since it is larger than the sum of its proper divisors (11134714).

18093842 is a wasteful number, since it uses less digits than its factorization.

18093842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 695932.

The product of its (nonzero) digits is 13824, while the sum is 35.

The square root of 18093842 is about 4253.6856959583. The cubic root of 18093842 is about 262.5287865634.

The spelling of 18093842 in words is "eighteen million, ninety-three thousand, eight hundred forty-two".