7219444 has 12 divisors (see below), whose sum is σ = 12942468. Its totient is φ = 3521600.

The previous prime is 7219427. The next prime is 7219469. The reversal of 7219444 is 4449127.

It can be written as a sum of positive squares in 2 ways, for example, as 1411344 + 5808100 = 1188^2 + 2410^2 .

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21847 + ... + 22174.

It is an arithmetic number, because the mean of its divisors is an integer number (1078539).

Almost surely, 2^7219444 is an apocalyptic number.

It is an amenable number.

7219444 is a deficient number, since it is larger than the sum of its proper divisors (5723024).

7219444 is a wasteful number, since it uses less digits than its factorization.

7219444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44066 (or 44064 counting only the distinct ones).

The product of its digits is 8064, while the sum is 31.

The square root of 7219444 is about 2686.9023056300. The cubic root of 7219444 is about 193.2715445299.

The spelling of 7219444 in words is "seven million, two hundred nineteen thousand, four hundred forty-four".