7220265 has 32 divisors (see below), whose sum is σ = 12665856. Its totient is φ = 3490560.

The previous prime is 7220263. The next prime is 7220299. The reversal of 7220265 is 5620227.

It is not a de Polignac number, because 7220265 - 2¹ = 7220263 is a prime.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (7220261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11592 + ... + 12198.

It is an arithmetic number, because the mean of its divisors is an integer number (395808).

Almost surely, 2^7220265 is an apocalyptic number.

It is an amenable number.

7220265 is a deficient number, since it is larger than the sum of its proper divisors (5445591).

7220265 is a wasteful number, since it uses less digits than its factorization.

7220265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 689.

The product of its (nonzero) digits is 1680, while the sum is 24.

The square root of 7220265 is about 2687.0550794504. The cubic root of 7220265 is about 193.2788705753.

The spelling of 7220265 in words is "seven million, two hundred twenty thousand, two hundred sixty-five".