18425842 has 8 divisors (see below), whose sum is σ = 28530432. Its totient is φ = 8915700.

The previous prime is 18425837. The next prime is 18425861. The reversal of 18425842 is 24852481.

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

It is a junction number, because it is equal to n+sod(n) for n = 18425798 and 18425807.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 148534 + ... + 148657.

It is an arithmetic number, because the mean of its divisors is an integer number (3566304).

Almost surely, 2^18425842 is an apocalyptic number.

18425842 is a deficient number, since it is larger than the sum of its proper divisors (10104590).

18425842 is a wasteful number, since it uses less digits than its factorization.

18425842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 297224.

The product of its digits is 20480, while the sum is 34.

The square root of 18425842 is about 4292.5332846700. The cubic root of 18425842 is about 264.1247592912.

The spelling of 18425842 in words is "eighteen million, four hundred twenty-five thousand, eight hundred forty-two".