1323995456 has 56 divisors (see below), whose sum is σ = 3072505920. Its totient is φ = 554222592.

The previous prime is 1323995363. The next prime is 1323995507. The reversal of 1323995456 is 6545993231.

It is a tau number, because it is divible by the number of its divisors (56).

It is a super-3 number, since 3×1323995456³ (a number of 28 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1323995456.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15101 + ... + 53628.

Almost surely, 2^1323995456 is an apocalyptic number.

1323995456 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1323995456 is an abundant number, since it is smaller than the sum of its proper divisors (1748510464).

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

1323995456 is an equidigital number, since it uses as much as digits as its factorization.

1323995456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68791 (or 68781 counting only the distinct ones).

The product of its digits is 874800, while the sum is 47.

The square root of 1323995456 is about 36386.7483570599. The cubic root of 1323995456 is about 1098.0669786603.

The spelling of 1323995456 in words is "one billion, three hundred twenty-three million, nine hundred ninety-five thousand, four hundred fifty-six".