1326022002 has 30 divisors (see below), whose sum is σ = 2972310429. Its totient is φ = 441852840.

The previous prime is 1326021997. The next prime is 1326022037. The reversal of 1326022002 is 2002206231.

It can be written as a sum of positive squares in 2 ways, for example, as 1321395201 + 4626801 = 36351^2 + 2151^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=25749.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

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 14 ways as a sum of consecutive naturals, for example, 462052 + ... + 464912.

Almost surely, 2^1326022002 is an apocalyptic number.

1326022002 is an abundant number, since it is smaller than the sum of its proper divisors (1646288427).

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

1326022002 is an frugal number, since it uses more digits than its factorization.

1326022002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5736 (or 2866 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 1326022002 is about 36414.5850175448. The cubic root of 1326022002 is about 1098.6269374921.

Multiplying 1326022002 by its sum of digits (18), we get a square (23868396036 = 154494²).

1326022002 divided by its sum of digits (18) gives a square (73667889 = 8583²).

Multiplying 1326022002 by its product of nonzero digits (288), we get a square (381894336576 = 617976²).

Adding to 1326022002 its reverse (2002206231), we get a palindrome (3328228233).

The spelling of 1326022002 in words is "one billion, three hundred twenty-six million, twenty-two thousand, two".