1828945 has 8 divisors (see below), whose sum is σ = 2323944. Its totient is φ = 1377024.

The previous prime is 1828933. The next prime is 1828973. The reversal of 1828945 is 5498281.

It can be written as a sum of positive squares in 4 ways, for example, as 271441 + 1557504 = 521^2 + 1248^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 1828945 - 2⁹ = 1828433 is a prime.

It is a Duffinian number.

1828945 is a lucky 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 7 ways as a sum of consecutive naturals, for example, 10674 + ... + 10843.

It is an arithmetic number, because the mean of its divisors is an integer number (290493).

2^1828945 is an apocalyptic number.

It is an amenable number.

1828945 is a deficient number, since it is larger than the sum of its proper divisors (494999).

1828945 is a wasteful number, since it uses less digits than its factorization.

1828945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21539.

The product of its digits is 23040, while the sum is 37.

The square root of 1828945 is about 1352.3849304100. The cubic root of 1828945 is about 122.2926103585.

The spelling of 1828945 in words is "one million, eight hundred twenty-eight thousand, nine hundred forty-five".