520310426 has 4 divisors (see below), whose sum is σ = 780465642. Its totient is φ = 260155212.

The previous prime is 520310423. The next prime is 520310443. The reversal of 520310426 is 624013025.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 328515625 + 191794801 = 18125^2 + 13849^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (520310423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 130077605 + ... + 130077608.

Almost surely, 2^520310426 is an apocalyptic number.

520310426 is a deficient number, since it is larger than the sum of its proper divisors (260155216).

520310426 is a wasteful number, since it uses less digits than its factorization.

520310426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 260155215.

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 520310426 is about 22810.3140267731. The cubic root of 520310426 is about 804.3051375548.

The spelling of 520310426 in words is "five hundred twenty million, three hundred ten thousand, four hundred twenty-six".