7220384 has 12 divisors (see below), whose sum is σ = 14215194. Its totient is φ = 3610176.

The previous prime is 7220383. The next prime is 7220407. The reversal of 7220384 is 4830227.

It can be written as a sum of positive squares in only one way, i.e., 4080400 + 3139984 = 2020^2 + 1772^2 .

It is not an unprimeable number, because it can be changed into a prime (7220383) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112787 + ... + 112850.

Almost surely, 2^7220384 is an apocalyptic number.

It is an amenable number.

7220384 is a deficient number, since it is larger than the sum of its proper divisors (6994810).

7220384 is a wasteful number, since it uses less digits than its factorization.

7220384 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 225647 (or 225639 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 26.

The square root of 7220384 is about 2687.0772225599. The cubic root of 7220384 is about 193.2799324043.

The spelling of 7220384 in words is "seven million, two hundred twenty thousand, three hundred eighty-four".