18396936 has 64 divisors (see below), whose sum is σ = 52099200. Its totient is φ = 6012864.

The previous prime is 18396893. The next prime is 18396947. The reversal of 18396936 is 63969381.

18396936 = 436² + 437² + ... + 516².

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 18396891 and 18396900.

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, 10645 + ... + 12251.

It is an arithmetic number, because the mean of its divisors is an integer number (814050).

Almost surely, 2^18396936 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18396936, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26049600).

18396936 is an abundant number, since it is smaller than the sum of its proper divisors (33702264).

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

18396936 is a wasteful number, since it uses less digits than its factorization.

18396936 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1675 (or 1665 counting only the distinct ones).

The product of its digits is 209952, while the sum is 45.

The square root of 18396936 is about 4289.1649536944. The cubic root of 18396936 is about 263.9865695647.

The spelling of 18396936 in words is "eighteen million, three hundred ninety-six thousand, nine hundred thirty-six".