872385226 has 24 divisors (see below), whose sum is σ = 1392474636. Its totient is φ = 409827840.

The previous prime is 872385211. The next prime is 872385263. The reversal of 872385226 is 622583278.

It can be written as a sum of positive squares in 6 ways, for example, as 845355625 + 27029601 = 29075^2 + 5199^2 .

It is a super-2 number, since 2×872385226² = 1522111965086142152, which contains 22 as substring.

It is a hoax number, since the sum of its digits (43) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 506046 + ... + 507766.

Almost surely, 2^872385226 is an apocalyptic number.

872385226 is a deficient number, since it is larger than the sum of its proper divisors (520089410).

872385226 is a wasteful number, since it uses less digits than its factorization.

872385226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2634 (or 2617 counting only the distinct ones).

The product of its digits is 322560, while the sum is 43.

The square root of 872385226 is about 29536.1680994675. The cubic root of 872385226 is about 955.5119012136.

The spelling of 872385226 in words is "eight hundred seventy-two million, three hundred eighty-five thousand, two hundred twenty-six".