1322776 has 64 divisors (see below), whose sum is σ = 3225600. Its totient is φ = 494208.

The previous prime is 1322767. The next prime is 1322813. The reversal of 1322776 is 6772231.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16705 + ... + 16783.

It is an arithmetic number, because the mean of its divisors is an integer number (50400).

2^1322776 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1322776, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1612800).

1322776 is an abundant number, since it is smaller than the sum of its proper divisors (1902824).

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

1322776 is a wasteful number, since it uses less digits than its factorization.

1322776 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128 (or 124 counting only the distinct ones).

The product of its digits is 3528, while the sum is 28.

The square root of 1322776 is about 1150.1199937398. The cubic root of 1322776 is about 109.7729753011.

The spelling of 1322776 in words is "one million, three hundred twenty-two thousand, seven hundred seventy-six".