7220484 has 18 divisors (see below), whose sum is σ = 18251870. Its totient is φ = 2406816.

The previous prime is 7220483. The next prime is 7220491. The reversal of 7220484 is 4840227.

It can be written as a sum of positive squares in only one way, i.e., 5198400 + 2022084 = 2280^2 + 1422^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7220483) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 100249 + ... + 100320.

Almost surely, 2^7220484 is an apocalyptic number.

It is an amenable number.

7220484 is an abundant number, since it is smaller than the sum of its proper divisors (11031386).

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

7220484 is a wasteful number, since it uses less digits than its factorization.

7220484 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 200579 (or 200574 counting only the distinct ones).

The product of its (nonzero) digits is 3584, while the sum is 27.

The square root of 7220484 is about 2687.0958300738. The cubic root of 7220484 is about 193.2808246885.

The spelling of 7220484 in words is "seven million, two hundred twenty thousand, four hundred eighty-four".