1326316420 has 48 divisors (see below), whose sum is σ = 3272205888. Its totient is φ = 445196160.

The previous prime is 1326316417. The next prime is 1326316429. The reversal of 1326316420 is 246136231.

It is not an unprimeable number, because it can be changed into a prime (1326316429) 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 15 ways as a sum of consecutive naturals, for example, 229014 + ... + 234733.

It is an arithmetic number, because the mean of its divisors is an integer number (68170956).

Almost surely, 2^1326316420 is an apocalyptic number.

1326316420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1326316420 is an abundant number, since it is smaller than the sum of its proper divisors (1945889468).

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

1326316420 is a wasteful number, since it uses less digits than its factorization.

1326316420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 463780 (or 463778 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 28.

The square root of 1326316420 is about 36418.6273766599. The cubic root of 1326316420 is about 1098.7082412234.

The spelling of 1326316420 in words is "one billion, three hundred twenty-six million, three hundred sixteen thousand, four hundred twenty".