18942325 has 6 divisors (see below), whose sum is σ = 23488514. Its totient is φ = 15153840.

The previous prime is 18942311. The next prime is 18942337. The reversal of 18942325 is 52324981.

It can be written as a sum of positive squares in 3 ways, for example, as 357604 + 18584721 = 598^2 + 4311^2 .

It is not a de Polignac number, because 18942325 - 2⁵ = 18942293 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 378822 + ... + 378871.

Almost surely, 2^18942325 is an apocalyptic number.

It is an amenable number.

18942325 is a deficient number, since it is larger than the sum of its proper divisors (4546189).

18942325 is an equidigital number, since it uses as much as digits as its factorization.

18942325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 757703 (or 757698 counting only the distinct ones).

The product of its digits is 17280, while the sum is 34.

The square root of 18942325 is about 4352.2781390899. The cubic root of 18942325 is about 266.5698910989.

The spelling of 18942325 in words is "eighteen million, nine hundred forty-two thousand, three hundred twenty-five".