7220404 has 12 divisors (see below), whose sum is σ = 12655300. Its totient is φ = 3604608.

The previous prime is 7220383. The next prime is 7220407. The reversal of 7220404 is 4040227.

It can be written as a sum of positive squares in 2 ways, for example, as 4848804 + 2371600 = 2202^2 + 1540^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7220407) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3142 + ... + 4930.

Almost surely, 2^7220404 is an apocalyptic number.

It is an amenable number.

7220404 is a deficient number, since it is larger than the sum of its proper divisors (5434896).

7220404 is a wasteful number, since it uses less digits than its factorization.

7220404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2802 (or 2800 counting only the distinct ones).

The product of its (nonzero) digits is 448, while the sum is 19.

The square root of 7220404 is about 2687.0809440730. The cubic root of 7220404 is about 193.2801108618.

The spelling of 7220404 in words is "seven million, two hundred twenty thousand, four hundred four".