7220572 has 6 divisors (see below), whose sum is σ = 12636008. Its totient is φ = 3610284.

The previous prime is 7220569. The next prime is 7220573. The reversal of 7220572 is 2750227.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7220573) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 902568 + ... + 902575.

Almost surely, 2^7220572 is an apocalyptic number.

It is an amenable number.

7220572 is a deficient number, since it is larger than the sum of its proper divisors (5415436).

7220572 is a wasteful number, since it uses less digits than its factorization.

7220572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1805147 (or 1805145 counting only the distinct ones).

The product of its (nonzero) digits is 1960, while the sum is 25.

The square root of 7220572 is about 2687.1122045795. The cubic root of 7220572 is about 193.2816098918.

Adding to 7220572 its reverse (2750227), we get a palindrome (9970799).

The spelling of 7220572 in words is "seven million, two hundred twenty thousand, five hundred seventy-two".