1322962816 has 64 divisors (see below), whose sum is σ = 3025507680. Its totient is φ = 564461568.

The previous prime is 1322962807. The next prime is 1322962819. The reversal of 1322962816 is 6182692231.

It is a tau number, because it is divible by the number of its divisors (64).

It is a super-2 number, since 2×1322962816² = 3500461225037299712, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1322962819) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 205600 + ... + 211936.

Almost surely, 2^1322962816 is an apocalyptic number.

1322962816 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1322962816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1512753840).

1322962816 is an abundant number, since it is smaller than the sum of its proper divisors (1702544864).

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

1322962816 is an equidigital number, since it uses as much as digits as its factorization.

1322962816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6591 (or 6579 counting only the distinct ones).

The product of its digits is 62208, while the sum is 40.

The square root of 1322962816 is about 36372.5558079165. Note that the first 3 decimals coincide. The cubic root of 1322962816 is about 1097.7814281317.

The spelling of 1322962816 in words is "one billion, three hundred twenty-two million, nine hundred sixty-two thousand, eight hundred sixteen".