1849040 has 40 divisors (see below), whose sum is σ = 4452840. Its totient is φ = 713216.

The previous prime is 1849037. The next prime is 1849049. The reversal of 1849040 is 409481.

It can be written as a sum of positive squares in 4 ways, for example, as 190096 + 1658944 = 436^2 + 1288^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1849049) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1922 + ... + 2718.

It is an arithmetic number, because the mean of its divisors is an integer number (111321).

2^1849040 is an apocalyptic number.

1849040 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 1849040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2226420).

1849040 is an abundant number, since it is smaller than the sum of its proper divisors (2603800).

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

1849040 is a wasteful number, since it uses less digits than its factorization.

1849040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 839 (or 833 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 26.

The square root of 1849040 is about 1359.7941020610. The cubic root of 1849040 is about 122.7388647653.

It can be divided in two parts, 18490 and 40, that multiplied together give a square (739600 = 860²).

The spelling of 1849040 in words is "one million, eight hundred forty-nine thousand, forty".