18886245 has 64 divisors (see below), whose sum is σ = 36495360. Its totient is φ = 8160768.

The previous prime is 18886229. The next prime is 18886253. The reversal of 18886245 is 54268881.

It is not a de Polignac number, because 18886245 - 2⁴ = 18886229 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 18886197 and 18886206.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 212161 + ... + 212249.

It is an arithmetic number, because the mean of its divisors is an integer number (570240).

Almost surely, 2^18886245 is an apocalyptic number.

18886245 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

18886245 is a deficient number, since it is larger than the sum of its proper divisors (17609115).

18886245 is a wasteful number, since it uses less digits than its factorization.

18886245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 194.

The product of its digits is 122880, while the sum is 42.

The square root of 18886245 is about 4345.8307606256. The cubic root of 18886245 is about 266.3065651601.

The spelling of 18886245 in words is "eighteen million, eight hundred eighty-six thousand, two hundred forty-five".