1322580 has 96 divisors (see below), whose sum is σ = 4386816. Its totient is φ = 291456.

The previous prime is 1322579. The next prime is 1322591. The reversal of 1322580 is 852231.

It is a super-4 number, since 4×1322580⁴ (a number of 26 digits) contains 4444 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 19707 + ... + 19773.

It is an arithmetic number, because the mean of its divisors is an integer number (45696).

2^1322580 is an apocalyptic number.

1322580 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1322580, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2193408).

1322580 is an abundant number, since it is smaller than the sum of its proper divisors (3064236).

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

1322580 is a wasteful number, since it uses less digits than its factorization.

1322580 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133 (or 131 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 1322580 is about 1150.0347820827. The cubic root of 1322580 is about 109.7675532277.

The spelling of 1322580 in words is "one million, three hundred twenty-two thousand, five hundred eighty".