1822042 has 8 divisors (see below), whose sum is σ = 2740500. Its totient is φ = 908544.

The previous prime is 1822027. The next prime is 1822063. The reversal of 1822042 is 2402281.

It can be written as a sum of positive squares in 2 ways, for example, as 1540081 + 281961 = 1241^2 + 531^2 .

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 117 + ... + 1912.

2^1822042 is an apocalyptic number.

1822042 is a deficient number, since it is larger than the sum of its proper divisors (918458).

1822042 is a wasteful number, since it uses less digits than its factorization.

1822042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2480.

The product of its (nonzero) digits is 256, while the sum is 19.

The square root of 1822042 is about 1349.8303597119. The cubic root of 1822042 is about 122.1385597639.

The spelling of 1822042 in words is "one million, eight hundred twenty-two thousand, forty-two".