1323340444 has 24 divisors (see below), whose sum is σ = 2343591936. Its totient is φ = 653790000.

The previous prime is 1323340433. The next prime is 1323340457. The reversal of 1323340444 is 4440433231.

It is a super-2 number, since 2×1323340444² = 3502459861452234272, which contains 22 as substring.

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, 109629 + ... + 121099.

It is an arithmetic number, because the mean of its divisors is an integer number (97649664).

Almost surely, 2^1323340444 is an apocalyptic number.

It is an amenable number.

1323340444 is a deficient number, since it is larger than the sum of its proper divisors (1020251492).

1323340444 is a wasteful number, since it uses less digits than its factorization.

1323340444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11817 (or 11815 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 28.

The square root of 1323340444 is about 36377.7465492298. The cubic root of 1323340444 is about 1097.8858688519.

Adding to 1323340444 its reverse (4440433231), we get a palindrome (5763773675).

The spelling of 1323340444 in words is "one billion, three hundred twenty-three million, three hundred forty thousand, four hundred forty-four".