1829985 has 16 divisors (see below), whose sum is σ = 3082560. Its totient is φ = 924480.

The previous prime is 1829963. The next prime is 1830011. The reversal of 1829985 is 5899281.

It is a happy number.

It is not a de Polignac number, because 1829985 - 2⁹ = 1829473 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2926 + ... + 3495.

It is an arithmetic number, because the mean of its divisors is an integer number (192660).

2^1829985 is an apocalyptic number.

1829985 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1829985 is a deficient number, since it is larger than the sum of its proper divisors (1252575).

1829985 is a wasteful number, since it uses less digits than its factorization.

1829985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6448.

The product of its digits is 51840, while the sum is 42.

The square root of 1829985 is about 1352.7693816760. The cubic root of 1829985 is about 122.3157858713.

It can be divided in two parts, 18 and 29985, that added together give a palindrome (30003).

The spelling of 1829985 in words is "one million, eight hundred twenty-nine thousand, nine hundred eighty-five".