22828172 has 6 divisors (see below), whose sum is σ = 39949308. Its totient is φ = 11414084.

The previous prime is 22828171. The next prime is 22828181. The reversal of 22828172 is 27182822.

It is a super-3 number, since 3×22828172³ (a number of 23 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (22828171) 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 as a sum of consecutive naturals, namely, 2853518 + ... + 2853525.

It is an arithmetic number, because the mean of its divisors is an integer number (6658218).

Almost surely, 2^22828172 is an apocalyptic number.

It is an amenable number.

22828172 is a deficient number, since it is larger than the sum of its proper divisors (17121136).

22828172 is a wasteful number, since it uses less digits than its factorization.

22828172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5707047 (or 5707045 counting only the distinct ones).

The product of its digits is 7168, while the sum is 32.

The square root of 22828172 is about 4777.8836319023. The cubic root of 22828172 is about 283.6767299676.

The spelling of 22828172 in words is "twenty-two million, eight hundred twenty-eight thousand, one hundred seventy-two".