520341722 has 16 divisors (see below), whose sum is σ = 814582440. Its totient is φ = 248973312.

The previous prime is 520341677. The next prime is 520341769. The reversal of 520341722 is 227143025.

It is a Cunningham number, because it is equal to 22811²+1.

It can be written as a sum of positive squares in 4 ways, for example, as 340808521 + 179533201 = 18461^2 + 13399^2 .

It is a junction number, because it is equal to n+sod(n) for n = 520341691 and 520341700.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33143 + ... + 46250.

Almost surely, 2^520341722 is an apocalyptic number.

520341722 is a deficient number, since it is larger than the sum of its proper divisors (294240718).

520341722 is a wasteful number, since it uses less digits than its factorization.

520341722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79537.

The product of its (nonzero) digits is 3360, while the sum is 26.

The square root of 520341722 is about 22811.0000219192. Note that the first 4 decimals coincide. The cubic root of 520341722 is about 804.3212632032.

Adding to 520341722 its reverse (227143025), we get a palindrome (747484747).

The spelling of 520341722 in words is "five hundred twenty million, three hundred forty-one thousand, seven hundred twenty-two".