1844340 has 48 divisors (see below), whose sum is σ = 5261760. Its totient is φ = 482560.

The previous prime is 1844333. The next prime is 1844341. The reversal of 1844340 is 434481.

It is a self number, because there is not a number n which added to its sum of digits gives 1844340.

It is a congruent 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, 3280 + ... + 3800.

It is an arithmetic number, because the mean of its divisors is an integer number (109620).

2^1844340 is an apocalyptic number.

1844340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1844340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2630880).

1844340 is an abundant number, since it is smaller than the sum of its proper divisors (3417420).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1844340 is a wasteful number, since it uses less digits than its factorization.

1844340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 592 (or 590 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 24.

The square root of 1844340 is about 1358.0647996322. The cubic root of 1844340 is about 122.6347815415.

The spelling of 1844340 in words is "one million, eight hundred forty-four thousand, three hundred forty".