18827224 has 16 divisors (see below), whose sum is σ = 38016720. Its totient is φ = 8689440.

The previous prime is 18827209. The next prime is 18827231. The reversal of 18827224 is 42272881.

It is a self number, because there is not a number n which added to its sum of digits gives 18827224.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 90412 + ... + 90619.

It is an arithmetic number, because the mean of its divisors is an integer number (2376045).

Almost surely, 2^18827224 is an apocalyptic number.

It is an amenable number.

18827224 is an abundant number, since it is smaller than the sum of its proper divisors (19189496).

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

18827224 is a wasteful number, since it uses less digits than its factorization.

18827224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 181050 (or 181046 counting only the distinct ones).

The product of its digits is 14336, while the sum is 34.

The square root of 18827224 is about 4339.0349157388. The cubic root of 18827224 is about 266.0288660328.

The spelling of 18827224 in words is "eighteen million, eight hundred twenty-seven thousand, two hundred twenty-four".