1285822 has 8 divisors (see below), whose sum is σ = 1955376. Its totient is φ = 634032.

The previous prime is 1285813. The next prime is 1285841. The reversal of 1285822 is 2285821.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent 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, 4258 + ... + 4549.

It is an arithmetic number, because the mean of its divisors is an integer number (244422).

2^1285822 is an apocalyptic number.

1285822 is a deficient number, since it is larger than the sum of its proper divisors (669554).

1285822 is an equidigital number, since it uses as much as digits as its factorization.

1285822 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8882.

The product of its digits is 2560, while the sum is 28.

The square root of 1285822 is about 1133.9409155684. The cubic root of 1285822 is about 108.7410738259.

Subtracting 1285822 from its reverse (2285821), we obtain a palindrome (999999).

It can be divided in two parts, 12858 and 22, that added together give a triangular number (12880 = T₁₆₀).

The spelling of 1285822 in words is "one million, two hundred eighty-five thousand, eight hundred twenty-two".