22287344 has 10 divisors (see below), whose sum is σ = 43181760. Its totient is φ = 11143664.

The previous prime is 22287337. The next prime is 22287359. The reversal of 22287344 is 44378222.

It is a self number, because there is not a number n which added to its sum of digits gives 22287344.

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 as a sum of consecutive naturals, namely, 696464 + ... + 696495.

It is an arithmetic number, because the mean of its divisors is an integer number (4318176).

Almost surely, 2^22287344 is an apocalyptic number.

It is an amenable number.

22287344 is a deficient number, since it is larger than the sum of its proper divisors (20894416).

22287344 is a wasteful number, since it uses less digits than its factorization.

22287344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1392967 (or 1392961 counting only the distinct ones).

The product of its digits is 21504, while the sum is 32.

The square root of 22287344 is about 4720.9473625534. The cubic root of 22287344 is about 281.4185831110.

The spelling of 22287344 in words is "twenty-two million, two hundred eighty-seven thousand, three hundred forty-four".