18486936 has 48 divisors (see below), whose sum is σ = 53922960. Its totient is φ = 5688000.

The previous prime is 18486931. The next prime is 18486961. The reversal of 18486936 is 63968481.

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 = 18486891 and 18486900.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18486931) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8940 + ... + 10811.

It is an arithmetic number, because the mean of its divisors is an integer number (1123395).

Almost surely, 2^18486936 is an apocalyptic number.

It is an amenable number.

18486936 is an abundant number, since it is smaller than the sum of its proper divisors (35436024).

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

18486936 is a wasteful number, since it uses less digits than its factorization.

18486936 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19776 (or 19769 counting only the distinct ones).

The product of its digits is 248832, while the sum is 45.

The square root of 18486936 is about 4299.6437061692. The cubic root of 18486936 is about 264.4163540427.

The spelling of 18486936 in words is "eighteen million, four hundred eighty-six thousand, nine hundred thirty-six".