222528845 has 24 divisors (see below), whose sum is σ = 338875488. Its totient is φ = 138717600.

The previous prime is 222528833. The next prime is 222528871. The reversal of 222528845 is 548825222.

It is not a de Polignac number, because 222528845 - 2¹⁰ = 222527821 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 222528799 and 222528808.

It is a congruent number.

It is an unprimeable number.

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 in 23 ways as a sum of consecutive naturals, for example, 38591 + ... + 43980.

It is an arithmetic number, because the mean of its divisors is an integer number (14119812).

Almost surely, 2^222528845 is an apocalyptic number.

It is an amenable number.

222528845 is a deficient number, since it is larger than the sum of its proper divisors (116346643).

222528845 is a wasteful number, since it uses less digits than its factorization.

222528845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82601 (or 82594 counting only the distinct ones).

The product of its digits is 102400, while the sum is 38.

The square root of 222528845 is about 14917.4007454382. The cubic root of 222528845 is about 605.9853215265.

The spelling of 222528845 in words is "two hundred twenty-two million, five hundred twenty-eight thousand, eight hundred forty-five".