18605936 has 20 divisors (see below), whose sum is σ = 37293000. Its totient is φ = 8981952.

The previous prime is 18605933. The next prime is 18605941. The reversal of 18605936 is 63950681.

It is a self number, because there is not a number n which added to its sum of digits gives 18605936.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18605933) 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, 19586 + ... + 20513.

It is an arithmetic number, because the mean of its divisors is an integer number (1864650).

Almost surely, 2^18605936 is an apocalyptic number.

18605936 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

18605936 is an abundant number, since it is smaller than the sum of its proper divisors (18687064).

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

18605936 is a wasteful number, since it uses less digits than its factorization.

18605936 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40136 (or 40130 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 38.

The square root of 18605936 is about 4313.4598641925. The cubic root of 18605936 is about 264.9824884595.

The spelling of 18605936 in words is "eighteen million, six hundred five thousand, nine hundred thirty-six".