1328337276 has 72 divisors (see below), whose sum is σ = 3616376400. Its totient is φ = 378379008.

The previous prime is 1328337247. The next prime is 1328337287. The reversal of 1328337276 is 6727338231.

It is a super-2 number, since 2×1328337276² = 3528959837622200352, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

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 23 ways as a sum of consecutive naturals, for example, 201976 + ... + 208448.

It is an arithmetic number, because the mean of its divisors is an integer number (50227450).

Almost surely, 2^1328337276 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 1328337276, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1808188200).

1328337276 is an abundant number, since it is smaller than the sum of its proper divisors (2288039124).

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

1328337276 is a wasteful number, since it uses less digits than its factorization.

1328337276 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6843 (or 6834 counting only the distinct ones).

The product of its digits is 254016, while the sum is 42.

The square root of 1328337276 is about 36446.3616291119. The cubic root of 1328337276 is about 1099.2659775184.

The spelling of 1328337276 in words is "one billion, three hundred twenty-eight million, three hundred thirty-seven thousand, two hundred seventy-six".