22857388 has 6 divisors (see below), whose sum is σ = 40000436. Its totient is φ = 11428692.

The previous prime is 22857349. The next prime is 22857389. The reversal of 22857388 is 88375822.

It is not an unprimeable number, because it can be changed into a prime (22857389) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2857170 + ... + 2857177.

Almost surely, 2^22857388 is an apocalyptic number.

It is an amenable number.

22857388 is a deficient number, since it is larger than the sum of its proper divisors (17143048).

22857388 is a wasteful number, since it uses less digits than its factorization.

22857388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5714351 (or 5714349 counting only the distinct ones).

The product of its digits is 215040, while the sum is 43.

The square root of 22857388 is about 4780.9400749225. The cubic root of 22857388 is about 283.7976969636.

The spelling of 22857388 in words is "twenty-two million, eight hundred fifty-seven thousand, three hundred eighty-eight".