18650224 has 20 divisors (see below), whose sum is σ = 38260944. Its totient is φ = 8776448.

The previous prime is 18650213. The next prime is 18650231. The reversal of 18650224 is 42205681.

It is a junction number, because it is equal to n+sod(n) for n = 18650192 and 18650201.

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, 34012 + ... + 34555.

Almost surely, 2^18650224 is an apocalyptic number.

It is an amenable number.

18650224 is an abundant number, since it is smaller than the sum of its proper divisors (19610720).

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

18650224 is a wasteful number, since it uses less digits than its factorization.

18650224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68592 (or 68586 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 28.

The square root of 18650224 is about 4318.5905108033. The cubic root of 18650224 is about 265.1925691798.

The spelling of 18650224 in words is "eighteen million, six hundred fifty thousand, two hundred twenty-four".