1329913296 has 40 divisors (see below), whose sum is σ = 3817344960. Its totient is φ = 443304288.

The previous prime is 1329913279. The next prime is 1329913297. The reversal of 1329913296 is 6923199231.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1329913297) 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, 1538820 + ... + 1539683.

It is an arithmetic number, because the mean of its divisors is an integer number (95433624).

Almost surely, 2^1329913296 is an apocalyptic number.

1329913296 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1329913296 is an abundant number, since it is smaller than the sum of its proper divisors (2487431664).

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

1329913296 is a wasteful number, since it uses less digits than its factorization.

1329913296 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3078520 (or 3078508 counting only the distinct ones).

The product of its digits is 157464, while the sum is 45.

The square root of 1329913296 is about 36467.9763079884. The cubic root of 1329913296 is about 1099.7005509964.

The spelling of 1329913296 in words is "one billion, three hundred twenty-nine million, nine hundred thirteen thousand, two hundred ninety-six".