1320892 has 24 divisors (see below), whose sum is σ = 2444400. Its totient is φ = 623616.

The previous prime is 1320889. The next prime is 1320901. The reversal of 1320892 is 2980231.

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6748 + ... + 6940.

It is an arithmetic number, because the mean of its divisors is an integer number (101850).

2^1320892 is an apocalyptic number.

It is an amenable number.

1320892 is a deficient number, since it is larger than the sum of its proper divisors (1123508).

1320892 is a wasteful number, since it uses less digits than its factorization.

1320892 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 285 (or 283 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 25.

The square root of 1320892 is about 1149.3006569214. The cubic root of 1320892 is about 109.7208348154.

The spelling of 1320892 in words is "one million, three hundred twenty thousand, eight hundred ninety-two".