18294937 has 8 divisors (see below), whose sum is σ = 18708872. Its totient is φ = 17884800.

The previous prime is 18294917. The next prime is 18294949. The reversal of 18294937 is 73949281.

It can be written as a sum of positive squares in 4 ways, for example, as 2062096 + 16232841 = 1436^2 + 4029^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-18294937 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 18294893 and 18294902.

It is not an unprimeable number, because it can be changed into a prime (18294917) 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 7 ways as a sum of consecutive naturals, for example, 10213 + ... + 11869.

It is an arithmetic number, because the mean of its divisors is an integer number (2338609).

Almost surely, 2^18294937 is an apocalyptic number.

It is an amenable number.

18294937 is a deficient number, since it is larger than the sum of its proper divisors (413935).

18294937 is a wasteful number, since it uses less digits than its factorization.

18294937 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1899.

The product of its digits is 108864, while the sum is 43.

The square root of 18294937 is about 4277.2581170652. The cubic root of 18294937 is about 263.4977873929.

The spelling of 18294937 in words is "eighteen million, two hundred ninety-four thousand, nine hundred thirty-seven".