18839346 has 32 divisors (see below), whose sum is σ = 39564288. Its totient is φ = 5969040.

The previous prime is 18839333. The next prime is 18839363. The reversal of 18839346 is 64393881.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 18839298 and 18839307.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28795 + ... + 29441.

It is an arithmetic number, because the mean of its divisors is an integer number (1236384).

Almost surely, 2^18839346 is an apocalyptic number.

18839346 is an abundant number, since it is smaller than the sum of its proper divisors (20724942).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

18839346 is a wasteful number, since it uses less digits than its factorization.

18839346 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 886.

The product of its digits is 124416, while the sum is 42.

The square root of 18839346 is about 4340.4315453650. The cubic root of 18839346 is about 266.0859484446.

The spelling of 18839346 in words is "eighteen million, eight hundred thirty-nine thousand, three hundred forty-six".