18836396 has 6 divisors (see below), whose sum is σ = 32963700. Its totient is φ = 9418196.

The previous prime is 18836383. The next prime is 18836401. The reversal of 18836396 is 69363881.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2354546 + ... + 2354553.

It is an arithmetic number, because the mean of its divisors is an integer number (5493950).

Almost surely, 2^18836396 is an apocalyptic number.

It is an amenable number.

18836396 is a deficient number, since it is larger than the sum of its proper divisors (14127304).

18836396 is a wasteful number, since it uses less digits than its factorization.

18836396 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4709103 (or 4709101 counting only the distinct ones).

The product of its digits is 186624, while the sum is 44.

The square root of 18836396 is about 4340.0917041003. The cubic root of 18836396 is about 266.0720591704.

The spelling of 18836396 in words is "eighteen million, eight hundred thirty-six thousand, three hundred ninety-six".