1322332405 has 4 divisors (see below), whose sum is σ = 1586798892. Its totient is φ = 1057865920.

The previous prime is 1322332393. The next prime is 1322332409. The reversal of 1322332405 is 5042332231.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5042332231 = 769 ⋅6556999.

It can be written as a sum of positive squares in 2 ways, for example, as 940403556 + 381928849 = 30666^2 + 19543^2 .

It is not a de Polignac number, because 1322332405 - 2²¹ = 1320235253 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1322332405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1322332409) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 132233236 + ... + 132233245.

It is an arithmetic number, because the mean of its divisors is an integer number (396699723).

Almost surely, 2^1322332405 is an apocalyptic number.

It is an amenable number.

1322332405 is a deficient number, since it is larger than the sum of its proper divisors (264466487).

1322332405 is an equidigital number, since it uses as much as digits as its factorization.

1322332405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 264466486.

The product of its (nonzero) digits is 4320, while the sum is 25.

The square root of 1322332405 is about 36363.8887496923. Note that the first 3 decimals coincide. The cubic root of 1322332405 is about 1097.6070308287.

Adding to 1322332405 its reverse (5042332231), we get a palindrome (6364664636).

The spelling of 1322332405 in words is "one billion, three hundred twenty-two million, three hundred thirty-two thousand, four hundred five".