322404013 has 4 divisors (see below), whose sum is σ = 326026620. Its totient is φ = 318781408.

The previous prime is 322403993. The next prime is 322404077. The reversal of 322404013 is 310404223.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 310404223 = 191 ⋅1625153.

It can be written as a sum of positive squares in 2 ways, for example, as 105637284 + 216766729 = 10278^2 + 14723^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-322404013 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (322407013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1811170 + ... + 1811347.

It is an arithmetic number, because the mean of its divisors is an integer number (81506655).

Almost surely, 2^322404013 is an apocalyptic number.

It is an amenable number.

322404013 is a deficient number, since it is larger than the sum of its proper divisors (3622607).

322404013 is an equidigital number, since it uses as much as digits as its factorization.

322404013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3622606.

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 322404013 is about 17955.6122981089. The cubic root of 322404013 is about 685.6989424043.

Adding to 322404013 its reverse (310404223), we get a palindrome (632808236).

The spelling of 322404013 in words is "three hundred twenty-two million, four hundred four thousand, thirteen".