7222544 has 40 divisors (see below), whose sum is σ = 16278720. Its totient is φ = 3040128.

The previous prime is 7222517. The next prime is 7222549. The reversal of 7222544 is 4452227.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7222549) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6062 + ... + 7154.

It is an arithmetic number, because the mean of its divisors is an integer number (406968).

Almost surely, 2^7222544 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7222544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8139360).

7222544 is an abundant number, since it is smaller than the sum of its proper divisors (9056176).

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

7222544 is a wasteful number, since it uses less digits than its factorization.

7222544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1167 (or 1161 counting only the distinct ones).

The product of its digits is 4480, while the sum is 26.

The square root of 7222544 is about 2687.4791161979. The cubic root of 7222544 is about 193.2992039107.

The spelling of 7222544 in words is "seven million, two hundred twenty-two thousand, five hundred forty-four".