1329849842 has 32 divisors (see below), whose sum is σ = 2116800000. Its totient is φ = 625564800.

The previous prime is 1329849827. The next prime is 1329849847. The reversal of 1329849842 is 2489489231.

It is a Smith number, since the sum of its digits (50) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (1329849847) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 886409 + ... + 887907.

It is an arithmetic number, because the mean of its divisors is an integer number (66150000).

Almost surely, 2^1329849842 is an apocalyptic number.

1329849842 is a deficient number, since it is larger than the sum of its proper divisors (786950158).

1329849842 is a wasteful number, since it uses less digits than its factorization.

1329849842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1922.

The product of its digits is 995328, while the sum is 50.

The square root of 1329849842 is about 36467.1063014328. The cubic root of 1329849842 is about 1099.6830607563.

The spelling of 1329849842 in words is "one billion, three hundred twenty-nine million, eight hundred forty-nine thousand, eight hundred forty-two".