1322992 has 20 divisors (see below), whose sum is σ = 2796696. Its totient is φ = 601280.

The previous prime is 1322977. The next prime is 1323001. The reversal of 1322992 is 2992231.

1322992 = 184² + 185² + ... + 216².

It is a self number, because there is not a number n which added to its sum of digits gives 1322992.

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 3 ways as a sum of consecutive naturals, for example, 3583 + ... + 3934.

2^1322992 is an apocalyptic number.

It is an amenable number.

1322992 is an abundant number, since it is smaller than the sum of its proper divisors (1473704).

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

1322992 is a wasteful number, since it uses less digits than its factorization.

1322992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7536 (or 7530 counting only the distinct ones).

The product of its digits is 1944, while the sum is 28.

The square root of 1322992 is about 1150.2138931521. The cubic root of 1322992 is about 109.7789500270.

It can be divided in two parts, 13 and 22992, that added together give a triangular number (23005 = T₂₁₄).

The spelling of 1322992 in words is "one million, three hundred twenty-two thousand, nine hundred ninety-two".