72082266 has 16 divisors (see below), whose sum is σ = 145121088. Its totient is φ = 23868000.

The previous prime is 72082249. The next prime is 72082267. The reversal of 72082266 is 66228027.

It is not an unprimeable number, because it can be changed into a prime (72082267) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38875 + ... + 40686.

It is an arithmetic number, because the mean of its divisors is an integer number (9070068).

Almost surely, 2^72082266 is an apocalyptic number.

72082266 is an abundant number, since it is smaller than the sum of its proper divisors (73038822).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

72082266 is a wasteful number, since it uses less digits than its factorization.

72082266 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79717.

The product of its (nonzero) digits is 16128, while the sum is 33.

The square root of 72082266 is about 8490.1275608792. The cubic root of 72082266 is about 416.1751489105.

The spelling of 72082266 in words is "seventy-two million, eighty-two thousand, two hundred sixty-six".