22857272 has 8 divisors (see below), whose sum is σ = 42857400. Its totient is φ = 11428632.

The previous prime is 22857271. The next prime is 22857281. The reversal of 22857272 is 27275822.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22857271) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1428572 + ... + 1428587.

It is an arithmetic number, because the mean of its divisors is an integer number (5357175).

Almost surely, 2^22857272 is an apocalyptic number.

It is an amenable number.

22857272 is a deficient number, since it is larger than the sum of its proper divisors (20000128).

22857272 is a wasteful number, since it uses less digits than its factorization.

22857272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2857165 (or 2857161 counting only the distinct ones).

The product of its digits is 31360, while the sum is 35.

The square root of 22857272 is about 4780.9279434018. The cubic root of 22857272 is about 283.7972168768.

The spelling of 22857272 in words is "twenty-two million, eight hundred fifty-seven thousand, two hundred seventy-two".