1822985 has 16 divisors (see below), whose sum is σ = 2291520. Its totient is φ = 1391040.

The previous prime is 1822981. The next prime is 1822999. The reversal of 1822985 is 5892281.

It is not a de Polignac number, because 1822985 - 2² = 1822981 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1822981) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13046 + ... + 13184.

It is an arithmetic number, because the mean of its divisors is an integer number (143220).

2^1822985 is an apocalyptic number.

It is an amenable number.

1822985 is a deficient number, since it is larger than the sum of its proper divisors (468535).

1822985 is a wasteful number, since it uses less digits than its factorization.

1822985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 248.

The product of its digits is 11520, while the sum is 35.

The square root of 1822985 is about 1350.1796176806. The cubic root of 1822985 is about 122.1596271153.

The spelling of 1822985 in words is "one million, eight hundred twenty-two thousand, nine hundred eighty-five".