1329992 has 16 divisors (see below), whose sum is σ = 2525040. Its totient is φ = 656656.

The previous prime is 1329971. The next prime is 1330001. The reversal of 1329992 is 2999231.

It is an Ulam number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 338 + ... + 1665.

It is an arithmetic number, because the mean of its divisors is an integer number (157815).

2^1329992 is an apocalyptic number.

It is an amenable number.

1329992 is a deficient number, since it is larger than the sum of its proper divisors (1195048).

1329992 is a wasteful number, since it uses less digits than its factorization.

1329992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2092 (or 2088 counting only the distinct ones).

The product of its digits is 8748, while the sum is 35.

The square root of 1329992 is about 1153.2527910220. The cubic root of 1329992 is about 109.9722243921.

The spelling of 1329992 in words is "one million, three hundred twenty-nine thousand, nine hundred ninety-two".