72266626 has 16 divisors (see below), whose sum is σ = 114934680. Its totient is φ = 33960960.

The previous prime is 72266591. The next prime is 72266627. The reversal of 72266626 is 62666227.

It can be written as a sum of positive squares in 4 ways, for example, as 64786401 + 7480225 = 8049^2 + 2735^2 .

It is not an unprimeable number, because it can be changed into a prime (72266627) 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, 44110 + ... + 45718.

Almost surely, 2^72266626 is an apocalyptic number.

72266626 is a deficient number, since it is larger than the sum of its proper divisors (42668054).

72266626 is a wasteful number, since it uses less digits than its factorization.

72266626 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2949.

The product of its digits is 72576, while the sum is 37.

The square root of 72266626 is about 8500.9779437427. The cubic root of 72266626 is about 416.5296546492.

The spelling of 72266626 in words is "seventy-two million, two hundred sixty-six thousand, six hundred twenty-six".