18379325 has 6 divisors (see below), whose sum is σ = 22790394. Its totient is φ = 14703440.

The previous prime is 18379321. The next prime is 18379349. The reversal of 18379325 is 52397381.

It can be written as a sum of positive squares in 3 ways, for example, as 2033476 + 16345849 = 1426^2 + 4043^2 .

It is not a de Polignac number, because 18379325 - 2² = 18379321 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18379321) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 367562 + ... + 367611.

It is an arithmetic number, because the mean of its divisors is an integer number (3798399).

Almost surely, 2^18379325 is an apocalyptic number.

It is an amenable number.

18379325 is a deficient number, since it is larger than the sum of its proper divisors (4411069).

18379325 is an equidigital number, since it uses as much as digits as its factorization.

18379325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 735183 (or 735178 counting only the distinct ones).

The product of its digits is 45360, while the sum is 38.

The square root of 18379325 is about 4287.1114984334. Note that the first 3 decimals coincide. The cubic root of 18379325 is about 263.9023064071.

The spelling of 18379325 in words is "eighteen million, three hundred seventy-nine thousand, three hundred twenty-five".