72076266 has 12 divisors (see below), whose sum is σ = 156165282. Its totient is φ = 24025416.

The previous prime is 72076247. The next prime is 72076267. The reversal of 72076266 is 66267027.

72076266 is a `hidden beast` number, since 7 + 20 + 7 + 626 + 6 = 666.

It can be written as a sum of positive squares in only one way, i.e., 65950641 + 6125625 = 8121^2 + 2475^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 72076266.

It is not an unprimeable number, because it can be changed into a prime (72076267) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2002101 + ... + 2002136.

Almost surely, 2^72076266 is an apocalyptic number.

72076266 is an abundant number, since it is smaller than the sum of its proper divisors (84089016).

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

72076266 is a wasteful number, since it uses less digits than its factorization.

72076266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4004245 (or 4004242 counting only the distinct ones).

The product of its (nonzero) digits is 42336, while the sum is 36.

The square root of 72076266 is about 8489.7742019444. The cubic root of 72076266 is about 416.1636013629.

The spelling of 72076266 in words is "seventy-two million, seventy-six thousand, two hundred sixty-six".