7272746 has 12 divisors (see below), whose sum is σ = 11813382. Its totient is φ = 3356496.

The previous prime is 7272737. The next prime is 7272751. The reversal of 7272746 is 6472727.

It can be written as a sum of positive squares in 3 ways, for example, as 3115225 + 4157521 = 1765^2 + 2039^2 .

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 10421 + ... + 11096.

Almost surely, 2^7272746 is an apocalyptic number.

7272746 is a deficient number, since it is larger than the sum of its proper divisors (4540636).

7272746 is a wasteful number, since it uses less digits than its factorization.

7272746 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21545 (or 21532 counting only the distinct ones).

The product of its digits is 32928, while the sum is 35.

The square root of 7272746 is about 2696.8029219800. The cubic root of 7272746 is about 193.7460275287.

The spelling of 7272746 in words is "seven million, two hundred seventy-two thousand, seven hundred forty-six".