322342421 has 2 divisors, whose sum is σ = 322342422. Its totient is φ = 322342420.

The previous prime is 322342387. The next prime is 322342459. The reversal of 322342421 is 124243223.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 164839921 + 157502500 = 12839^2 + 12550^2 .

It is a cyclic number.

It is not a de Polignac number, because 322342421 - 2²⁶ = 255233557 is a prime.

It is a super-2 number, since 2×322342421² = 207809272752282482, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (322342021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 161171210 + 161171211.

It is an arithmetic number, because the mean of its divisors is an integer number (161171211).

Almost surely, 2^322342421 is an apocalyptic number.

It is an amenable number.

322342421 is a deficient number, since it is larger than the sum of its proper divisors (1).

322342421 is an equidigital number, since it uses as much as digits as its factorization.

322342421 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2304, while the sum is 23.

The square root of 322342421 is about 17953.8970978448. The cubic root of 322342421 is about 685.6552743592.

Adding to 322342421 its reverse (124243223), we get a palindrome (446585644).

The spelling of 322342421 in words is "three hundred twenty-two million, three hundred forty-two thousand, four hundred twenty-one".