1332320405 has 8 divisors (see below), whose sum is σ = 1721767992. Its totient is φ = 983867328.

The previous prime is 1332320377. The next prime is 1332320411. The reversal of 1332320405 is 5040232331.

It can be written as a sum of positive squares in 4 ways, for example, as 508369 + 1331812036 = 713^2 + 36494^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1332320405 - 2²⁴ = 1315543189 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10248554 + ... + 10248683.

It is an arithmetic number, because the mean of its divisors is an integer number (215220999).

Almost surely, 2^1332320405 is an apocalyptic number.

It is an amenable number.

1332320405 is a deficient number, since it is larger than the sum of its proper divisors (389447587).

1332320405 is a wasteful number, since it uses less digits than its factorization.

1332320405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20497255.

The product of its (nonzero) digits is 2160, while the sum is 23.

The square root of 1332320405 is about 36500.9644393131. The cubic root of 1332320405 is about 1100.3636277160.

Adding to 1332320405 its reverse (5040232331), we get a palindrome (6372552736).

The spelling of 1332320405 in words is "one billion, three hundred thirty-two million, three hundred twenty thousand, four hundred five".