18605196 has 18 divisors (see below), whose sum is σ = 47029892. Its totient is φ = 6201720.

The previous prime is 18605189. The next prime is 18605201. The reversal of 18605196 is 69150681.

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 516811 = 18605196 / (1 + 8 + 6 + 0 + 5 + 1 + 9 + 6).

It is a self number, because there is not a number n which added to its sum of digits gives 18605196.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 258370 + ... + 258441.

Almost surely, 2^18605196 is an apocalyptic number.

It is an amenable number.

18605196 is an abundant number, since it is smaller than the sum of its proper divisors (28424696).

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

18605196 is a wasteful number, since it uses less digits than its factorization.

18605196 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 516821 (or 516816 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 36.

The square root of 18605196 is about 4313.3740853304. The cubic root of 18605196 is about 264.9789754294.

It can be divided in two parts, 1860 and 5196, that added together give a square (7056 = 84²).

The spelling of 18605196 in words is "eighteen million, six hundred five thousand, one hundred ninety-six".