18275842 has 16 divisors (see below), whose sum is σ = 29930040. Its totient is φ = 8318592.

The previous prime is 18275837. The next prime is 18275863. The reversal of 18275842 is 24857281.

It can be written as a sum of positive squares in 4 ways, for example, as 17464041 + 811801 = 4179^2 + 901^2 .

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 7 ways as a sum of consecutive naturals, for example, 2917 + ... + 6712.

Almost surely, 2^18275842 is an apocalyptic number.

18275842 is a deficient number, since it is larger than the sum of its proper divisors (11654198).

18275842 is a wasteful number, since it uses less digits than its factorization.

18275842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9717.

The product of its digits is 35840, while the sum is 37.

The square root of 18275842 is about 4275.0253800416. The cubic root of 18275842 is about 263.4060818430.

The spelling of 18275842 in words is "eighteen million, two hundred seventy-five thousand, eight hundred forty-two".