18834224 has 20 divisors (see below), whose sum is σ = 37750560. Its totient is φ = 9092160.

The previous prime is 18834223. The next prime is 18834331. The reversal of 18834224 is 42243881.

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (18834223) 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, 19832 + ... + 20759.

It is an arithmetic number, because the mean of its divisors is an integer number (1887528).

Almost surely, 2^18834224 is an apocalyptic number.

It is an amenable number.

18834224 is an abundant number, since it is smaller than the sum of its proper divisors (18916336).

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

18834224 is a wasteful number, since it uses less digits than its factorization.

18834224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40628 (or 40622 counting only the distinct ones).

The product of its digits is 12288, while the sum is 32.

The square root of 18834224 is about 4339.8414717591. The cubic root of 18834224 is about 266.0618319712.

The spelling of 18834224 in words is "eighteen million, eight hundred thirty-four thousand, two hundred twenty-four".