4520722 has 8 divisors (see below), whose sum is σ = 6794172. Its totient is φ = 2256000.

The previous prime is 4520713. The next prime is 4520729. The reversal of 4520722 is 2270254.

It can be written as a sum of positive squares in 2 ways, for example, as 4405801 + 114921 = 2099^2 + 339^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 4520693 and 4520702.

It is not an unprimeable number, because it can be changed into a prime (4520729) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 679 + ... + 3082.

Almost surely, 2^4520722 is an apocalyptic number.

4520722 is a deficient number, since it is larger than the sum of its proper divisors (2273450).

4520722 is a wasteful number, since it uses less digits than its factorization.

4520722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4364.

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

The square root of 4520722 is about 2126.1989558835. The cubic root of 4520722 is about 165.3493912531.

Adding to 4520722 its reverse (2270254), we get a palindrome (6790976).

The spelling of 4520722 in words is "four million, five hundred twenty thousand, seven hundred twenty-two".