18244252 has 12 divisors (see below), whose sum is σ = 34383496. Its totient is φ = 8420400.

The previous prime is 18244241. The next prime is 18244253. The reversal of 18244252 is 25244281.

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 18244252.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18244253) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 175374 + ... + 175477.

Almost surely, 2^18244252 is an apocalyptic number.

It is an amenable number.

18244252 is a deficient number, since it is larger than the sum of its proper divisors (16139244).

18244252 is a wasteful number, since it uses less digits than its factorization.

18244252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 350868 (or 350866 counting only the distinct ones).

The product of its digits is 5120, while the sum is 28.

The square root of 18244252 is about 4271.3290671640. The cubic root of 18244252 is about 263.2542275162.

It can be divided in two parts, 18244 and 252, that added together give a square (18496 = 136²).

The spelling of 18244252 in words is "eighteen million, two hundred forty-four thousand, two hundred fifty-two".