1845842 has 8 divisors (see below), whose sum is σ = 2889216. Its totient is φ = 882772.

The previous prime is 1845841. The next prime is 1845881. The reversal of 1845842 is 2485481.

It is a happy number.

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

It is a junction number, because it is equal to n+sod(n) for n = 1845799 and 1845808.

It is not an unprimeable number, because it can be changed into a prime (1845841) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20018 + ... + 20109.

It is an arithmetic number, because the mean of its divisors is an integer number (361152).

2^1845842 is an apocalyptic number.

1845842 is a deficient number, since it is larger than the sum of its proper divisors (1043374).

1845842 is a wasteful number, since it uses less digits than its factorization.

1845842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40152.

The product of its digits is 10240, while the sum is 32.

The square root of 1845842 is about 1358.6176798496. The cubic root of 1845842 is about 122.6680630880.

The spelling of 1845842 in words is "one million, eight hundred forty-five thousand, eight hundred forty-two".