1326793552 has 80 divisors (see below), whose sum is σ = 3103547392. Its totient is φ = 537425280.

The previous prime is 1326793549. The next prime is 1326793591. The reversal of 1326793552 is 2553976231.

It is a super-2 number, since 2×1326793552² = 3520762259257553408, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is a junction number, because it is equal to n+sod(n) for n = 1326793499 and 1326793508.

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 15 ways as a sum of consecutive naturals, for example, 144853 + ... + 153739.

Almost surely, 2^1326793552 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1326793552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1551773696).

1326793552 is an abundant number, since it is smaller than the sum of its proper divisors (1776753840).

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

1326793552 is a wasteful number, since it uses less digits than its factorization.

1326793552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8976 (or 8970 counting only the distinct ones).

The product of its digits is 340200, while the sum is 43.

The square root of 1326793552 is about 36425.1774463763. The cubic root of 1326793552 is about 1098.8399760048.

The spelling of 1326793552 in words is "one billion, three hundred twenty-six million, seven hundred ninety-three thousand, five hundred fifty-two".