1844345 has 16 divisors (see below), whose sum is σ = 2330112. Its totient is φ = 1399680.

The previous prime is 1844341. The next prime is 1844357. The reversal of 1844345 is 5434481.

It is not a de Polignac number, because 1844345 - 2² = 1844341 is a prime.

It is a Smith number, since the sum of its digits (29) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1844341) 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, 11234 + ... + 11396.

It is an arithmetic number, because the mean of its divisors is an integer number (145632).

2^1844345 is an apocalyptic number.

It is an amenable number.

1844345 is a deficient number, since it is larger than the sum of its proper divisors (485767).

1844345 is a wasteful number, since it uses less digits than its factorization.

1844345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 272.

The product of its digits is 7680, while the sum is 29.

The square root of 1844345 is about 1358.0666404857. The cubic root of 1844345 is about 122.6348923623.

It can be divided in two parts, 184 and 4345, that multiplied together give a triangular number (799480 = T₁₂₆₄).

The spelling of 1844345 in words is "one million, eight hundred forty-four thousand, three hundred forty-five".