7272306 has 12 divisors (see below), whose sum is σ = 15756702. Its totient is φ = 2424096.

The previous prime is 7272283. The next prime is 7272319. The reversal of 7272306 is 6032727.

It can be written as a sum of positive squares in only one way, i.e., 4995225 + 2277081 = 2235^2 + 1509^2 .

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 7272306.

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, 201991 + ... + 202026.

Almost surely, 2^7272306 is an apocalyptic number.

7272306 is an abundant number, since it is smaller than the sum of its proper divisors (8484396).

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

7272306 is a wasteful number, since it uses less digits than its factorization.

7272306 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 404025 (or 404022 counting only the distinct ones).

The product of its (nonzero) digits is 3528, while the sum is 27.

The square root of 7272306 is about 2696.7213426678. The cubic root of 7272306 is about 193.7421202484.

The spelling of 7272306 in words is "seven million, two hundred seventy-two thousand, three hundred six".