18025838 has 8 divisors (see below), whose sum is σ = 27089832. Its totient is φ = 8995896.

The previous prime is 18025823. The next prime is 18025841. The reversal of 18025838 is 83852081.

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

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 18025798 and 18025807.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7145 + ... + 9332.

It is an arithmetic number, because the mean of its divisors is an integer number (3386229).

Almost surely, 2^18025838 is an apocalyptic number.

18025838 is a deficient number, since it is larger than the sum of its proper divisors (9063994).

18025838 is a wasteful number, since it uses less digits than its factorization.

18025838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17026.

The product of its (nonzero) digits is 15360, while the sum is 35.

The square root of 18025838 is about 4245.6846326594. The cubic root of 18025838 is about 262.1994770907.

The spelling of 18025838 in words is "eighteen million, twenty-five thousand, eight hundred thirty-eight".