1322640433 has 2 divisors, whose sum is σ = 1322640434. Its totient is φ = 1322640432.

The previous prime is 1322640421. The next prime is 1322640437. The reversal of 1322640433 is 3340462231.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1311671089 + 10969344 = 36217^2 + 3312^2 .

It is a cyclic number.

It is not a de Polignac number, because 1322640433 - 2²¹ = 1320543281 is a prime.

It is not a weakly prime, because it can be changed into another prime (1322640437) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 661320216 + 661320217.

It is an arithmetic number, because the mean of its divisors is an integer number (661320217).

Almost surely, 2^1322640433 is an apocalyptic number.

It is an amenable number.

1322640433 is a deficient number, since it is larger than the sum of its proper divisors (1).

1322640433 is an equidigital number, since it uses as much as digits as its factorization.

1322640433 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10368, while the sum is 28.

The square root of 1322640433 is about 36368.1238586760. The cubic root of 1322640433 is about 1097.6922508153.

The spelling of 1322640433 in words is "one billion, three hundred twenty-two million, six hundred forty thousand, four hundred thirty-three".