18082373 has 8 divisors (see below), whose sum is σ = 19317528. Its totient is φ = 16866304.

The previous prime is 18082369. The next prime is 18082411. The reversal of 18082373 is 37328081.

It can be written as a sum of positive squares in 4 ways, for example, as 5536609 + 12545764 = 2353^2 + 3542^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 18082373 - 2² = 18082369 is a prime.

It is a super-2 number, since 2×18082373² = 653944426622258, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18082303) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2786 + ... + 6627.

It is an arithmetic number, because the mean of its divisors is an integer number (2414691).

Almost surely, 2^18082373 is an apocalyptic number.

It is an amenable number.

18082373 is a deficient number, since it is larger than the sum of its proper divisors (1235155).

18082373 is a wasteful number, since it uses less digits than its factorization.

18082373 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9543.

The product of its (nonzero) digits is 8064, while the sum is 32.

The square root of 18082373 is about 4252.3373572660. The cubic root of 18082373 is about 262.4733058267.

The spelling of 18082373 in words is "eighteen million, eighty-two thousand, three hundred seventy-three".