1328143299 has 32 divisors (see below), whose sum is σ = 2077608960. Its totient is φ = 738854400.

The previous prime is 1328143183. The next prime is 1328143307. The reversal of 1328143299 is 9923418231.

It is not a de Polignac number, because 1328143299 - 2⁸ = 1328143043 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1328143299.

It is not an unprimeable number, because it can be changed into a prime (1328143699) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 488554 + ... + 491264.

It is an arithmetic number, because the mean of its divisors is an integer number (64925280).

Almost surely, 2^1328143299 is an apocalyptic number.

1328143299 is a deficient number, since it is larger than the sum of its proper divisors (749465661).

1328143299 is a wasteful number, since it uses less digits than its factorization.

1328143299 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3331.

The product of its digits is 93312, while the sum is 42.

The square root of 1328143299 is about 36443.7004021271. The cubic root of 1328143299 is about 1099.2124663355.

The spelling of 1328143299 in words is "one billion, three hundred twenty-eight million, one hundred forty-three thousand, two hundred ninety-nine".