322012393 has 4 divisors (see below), whose sum is σ = 324173700. Its totient is φ = 319851088.

The previous prime is 322012387. The next prime is 322012403. The reversal of 322012393 is 393210223.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 393210223 = 7 ⋅56172889.

It can be written as a sum of positive squares in 2 ways, for example, as 45522009 + 276490384 = 6747^2 + 16628^2 .

It is a cyclic number.

It is not a de Polignac number, because 322012393 - 2⁹ = 322011881 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (322012343) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1080430 + ... + 1080727.

It is an arithmetic number, because the mean of its divisors is an integer number (81043425).

Almost surely, 2^322012393 is an apocalyptic number.

It is an amenable number.

322012393 is a deficient number, since it is larger than the sum of its proper divisors (2161307).

322012393 is a wasteful number, since it uses less digits than its factorization.

322012393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2161306.

The product of its (nonzero) digits is 1944, while the sum is 25.

The square root of 322012393 is about 17944.7037590482. The cubic root of 322012393 is about 685.4211933581.

The spelling of 322012393 in words is "three hundred twenty-two million, twelve thousand, three hundred ninety-three".