72282266 has 64 divisors (see below), whose sum is σ = 138184704. Its totient is φ = 27648000.

The previous prime is 72282253. The next prime is 72282271. The reversal of 72282266 is 66228227.

It is a Curzon 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 31 ways as a sum of consecutive naturals, for example, 715616 + ... + 715716.

It is an arithmetic number, because the mean of its divisors is an integer number (2159136).

Almost surely, 2^72282266 is an apocalyptic number.

72282266 is a deficient number, since it is larger than the sum of its proper divisors (65902438).

72282266 is a wasteful number, since it uses less digits than its factorization.

72282266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 255.

The product of its digits is 32256, while the sum is 35.

The square root of 72282266 is about 8501.8977881412. The cubic root of 72282266 is about 416.5597010402.

The spelling of 72282266 in words is "seventy-two million, two hundred eighty-two thousand, two hundred sixty-six".