1323967992 has 32 divisors (see below), whose sum is σ = 3312565200. Its totient is φ = 440969984.

The previous prime is 1323967991. The next prime is 1323968017. The reversal of 1323967992 is 2997693231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1323967991) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9538 + ... + 52334.

Almost surely, 2^1323967992 is an apocalyptic number.

1323967992 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1323967992 is an abundant number, since it is smaller than the sum of its proper divisors (1988597208).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1323967992 is a wasteful number, since it uses less digits than its factorization.

1323967992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44095 (or 44091 counting only the distinct ones).

The product of its digits is 1102248, while the sum is 51.

The square root of 1323967992 is about 36386.3709649643. The cubic root of 1323967992 is about 1098.0593861066.

The spelling of 1323967992 in words is "one billion, three hundred twenty-three million, nine hundred sixty-seven thousand, nine hundred ninety-two".