7240522 has 8 divisors (see below), whose sum is σ = 10908900. Its totient is φ = 3604224.

The previous prime is 7240481. The next prime is 7240523. The reversal of 7240522 is 2250427.

It can be written as a sum of positive squares in 2 ways, for example, as 7230721 + 9801 = 2689^2 + 99^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-4 number, since 4×7240522⁴ (a number of 29 digits) contains 4444 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 7240493 and 7240502.

It is not an unprimeable number, because it can be changed into a prime (7240523) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7447 + ... + 8362.

Almost surely, 2^7240522 is an apocalyptic number.

7240522 is a deficient number, since it is larger than the sum of its proper divisors (3668378).

7240522 is a wasteful number, since it uses less digits than its factorization.

7240522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16040.

The product of its (nonzero) digits is 1120, while the sum is 22.

The square root of 7240522 is about 2690.8218075525. The cubic root of 7240522 is about 193.4594546336.

Adding to 7240522 its reverse (2250427), we get a palindrome (9490949).

It can be divided in two parts, 72405 and 22, that added together give a palindrome (72427).

The spelling of 7240522 in words is "seven million, two hundred forty thousand, five hundred twenty-two".