7220336 has 20 divisors (see below), whose sum is σ = 14160552. Its totient is φ = 3566016.

The previous prime is 7220299. The next prime is 7220347. The reversal of 7220336 is 6330227.

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 1391 + ... + 4046.

Almost surely, 2^7220336 is an apocalyptic number.

It is an amenable number.

7220336 is a deficient number, since it is larger than the sum of its proper divisors (6940216).

7220336 is a wasteful number, since it uses less digits than its factorization.

7220336 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5528 (or 5522 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 23.

The square root of 7220336 is about 2687.0682909074. The cubic root of 7220336 is about 193.2795041049.

The spelling of 7220336 in words is "seven million, two hundred twenty thousand, three hundred thirty-six".