18395836 has 12 divisors (see below), whose sum is σ = 34086528. Its totient is φ = 8656832.

The previous prime is 18395833. The next prime is 18395879. The reversal of 18395836 is 63859381.

It is a junction number, because it is equal to n+sod(n) for n = 18395792 and 18395801.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18395833) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 135196 + ... + 135331.

It is an arithmetic number, because the mean of its divisors is an integer number (2840544).

Almost surely, 2^18395836 is an apocalyptic number.

It is an amenable number.

18395836 is a deficient number, since it is larger than the sum of its proper divisors (15690692).

18395836 is a wasteful number, since it uses less digits than its factorization.

18395836 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 270548 (or 270546 counting only the distinct ones).

The product of its digits is 155520, while the sum is 43.

The square root of 18395836 is about 4289.0367216894. The cubic root of 18395836 is about 263.9813079818.

The spelling of 18395836 in words is "eighteen million, three hundred ninety-five thousand, eight hundred thirty-six".