1828385 has 16 divisors (see below), whose sum is σ = 2467584. Its totient is φ = 1290432.

The previous prime is 1828381. The next prime is 1828397. The reversal of 1828385 is 5838281.

1828385 = 48² + 49² + ... + 177².

It is not a de Polignac number, because 1828385 - 2² = 1828381 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1828381) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 884 + ... + 2106.

It is an arithmetic number, because the mean of its divisors is an integer number (154224).

2^1828385 is an apocalyptic number.

It is an amenable number.

1828385 is a deficient number, since it is larger than the sum of its proper divisors (639199).

1828385 is a wasteful number, since it uses less digits than its factorization.

1828385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1264.

The product of its digits is 15360, while the sum is 35.

The square root of 1828385 is about 1352.1778729147. The cubic root of 1828385 is about 122.2801275970.

The spelling of 1828385 in words is "one million, eight hundred twenty-eight thousand, three hundred eighty-five".