18826224 has 20 divisors (see below), whose sum is σ = 48634536. Its totient is φ = 6275392.

The previous prime is 18826211. The next prime is 18826231. The reversal of 18826224 is 42262881.

It is a happy number.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 196059 + ... + 196154.

Almost surely, 2^18826224 is an apocalyptic number.

It is an amenable number.

18826224 is an abundant number, since it is smaller than the sum of its proper divisors (29808312).

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

18826224 is a wasteful number, since it uses less digits than its factorization.

18826224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 392224 (or 392218 counting only the distinct ones).

The product of its digits is 12288, while the sum is 33.

The square root of 18826224 is about 4338.9196812110. The cubic root of 18826224 is about 266.0241559460.

The spelling of 18826224 in words is "eighteen million, eight hundred twenty-six thousand, two hundred twenty-four".