1323276816 has 20 divisors (see below), whose sum is σ = 3418465232. Its totient is φ = 441092256.

The previous prime is 1323276791. The next prime is 1323276817. The reversal of 1323276816 is 6186723231.

1323276816 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (1323276817) 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, 13784086 + ... + 13784181.

Almost surely, 2^1323276816 is an apocalyptic number.

1323276816 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1323276816 is an abundant number, since it is smaller than the sum of its proper divisors (2095188416).

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

1323276816 is a wasteful number, since it uses less digits than its factorization.

1323276816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27568278 (or 27568272 counting only the distinct ones).

The product of its digits is 72576, while the sum is 39.

The square root of 1323276816 is about 36376.8719930672. The cubic root of 1323276816 is about 1097.8682726236.

The spelling of 1323276816 in words is "one billion, three hundred twenty-three million, two hundred seventy-six thousand, eight hundred sixteen".