1819022 has 8 divisors (see below), whose sum is σ = 2872200. Its totient is φ = 861624.

The previous prime is 1819007. The next prime is 1819043. The reversal of 1819022 is 2209181.

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 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, 23897 + ... + 23972.

It is an arithmetic number, because the mean of its divisors is an integer number (359025).

2^1819022 is an apocalyptic number.

1819022 is a deficient number, since it is larger than the sum of its proper divisors (1053178).

1819022 is a wasteful number, since it uses less digits than its factorization.

1819022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47890.

The product of its (nonzero) digits is 288, while the sum is 23.

The square root of 1819022 is about 1348.7112366997. The cubic root of 1819022 is about 122.0710416660.

The spelling of 1819022 in words is "one million, eight hundred nineteen thousand, twenty-two".