1332344021 has 4 divisors (see below), whose sum is σ = 1333760844. Its totient is φ = 1330927200.

The previous prime is 1332343997. The next prime is 1332344033. The reversal of 1332344021 is 1204432331.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 879122500 + 453221521 = 29650^2 + 21289^2 .

It is a cyclic number.

It is not a de Polignac number, because 1332344021 - 2¹⁰ = 1332342997 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1332344821) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 707000 + ... + 708881.

It is an arithmetic number, because the mean of its divisors is an integer number (333440211).

Almost surely, 2^1332344021 is an apocalyptic number.

It is an amenable number.

1332344021 is a deficient number, since it is larger than the sum of its proper divisors (1416823).

1332344021 is an equidigital number, since it uses as much as digits as its factorization.

1332344021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1416822.

The product of its (nonzero) digits is 1728, while the sum is 23.

The square root of 1332344021 is about 36501.2879361811. The cubic root of 1332344021 is about 1100.3701291636.

Adding to 1332344021 its reverse (1204432331), we get a palindrome (2536776352).

The spelling of 1332344021 in words is "one billion, three hundred thirty-two million, three hundred forty-four thousand, twenty-one".