18222324 has 24 divisors (see below), whose sum is σ = 43985760. Its totient is φ = 5864544.

The previous prime is 18222307. The next prime is 18222331. The reversal of 18222324 is 42322281.

It is a junction number, because it is equal to n+sod(n) for n = 18222294 and 18222303.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25834 + ... + 26529.

It is an arithmetic number, because the mean of its divisors is an integer number (1832740).

Almost surely, 2^18222324 is an apocalyptic number.

It is an amenable number.

18222324 is an abundant number, since it is smaller than the sum of its proper divisors (25763436).

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

18222324 is a wasteful number, since it uses less digits than its factorization.

18222324 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52399 (or 52397 counting only the distinct ones).

The product of its digits is 1536, while the sum is 24.

The square root of 18222324 is about 4268.7614128691. The cubic root of 18222324 is about 263.1487156911.

The spelling of 18222324 in words is "eighteen million, two hundred twenty-two thousand, three hundred twenty-four".