18222484 has 24 divisors (see below), whose sum is σ = 36888768. Its totient is φ = 7714560.

The previous prime is 18222473. The next prime is 18222541. The reversal of 18222484 is 48422281.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1597 + ... + 6244.

It is an arithmetic number, because the mean of its divisors is an integer number (1537032).

Almost surely, 2^18222484 is an apocalyptic number.

18222484 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

18222484 is an abundant number, since it is smaller than the sum of its proper divisors (18666284).

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

18222484 is a wasteful number, since it uses less digits than its factorization.

18222484 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7935 (or 7933 counting only the distinct ones).

The product of its digits is 8192, while the sum is 31.

The square root of 18222484 is about 4268.7801536270. The cubic root of 18222484 is about 263.1494858759.

The spelling of 18222484 in words is "eighteen million, two hundred twenty-two thousand, four hundred eighty-four".