22288347 has 12 divisors (see below), whose sum is σ = 32270680. Its totient is φ = 14823648.

The previous prime is 22288337. The next prime is 22288361. The reversal of 22288347 is 74388222.

It is not a de Polignac number, because 22288347 - 2¹⁹ = 21764059 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22288337) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1404 + ... + 6822.

Almost surely, 2^22288347 is an apocalyptic number.

22288347 is a deficient number, since it is larger than the sum of its proper divisors (9982333).

22288347 is a wasteful number, since it uses less digits than its factorization.

22288347 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5882 (or 5879 counting only the distinct ones).

The product of its digits is 43008, while the sum is 36.

The square root of 22288347 is about 4721.0535900369. The cubic root of 22288347 is about 281.4228046191.

It can be divided in two parts, 22 and 288347, that added together give a square (288369 = 537²).

The spelling of 22288347 in words is "twenty-two million, two hundred eighty-eight thousand, three hundred forty-seven".