1849240 has 32 divisors (see below), whose sum is σ = 4218480. Its totient is φ = 729472.

The previous prime is 1849231. The next prime is 1849241. The reversal of 1849240 is 429481.

It is a junction number, because it is equal to n+sod(n) for n = 1849199 and 1849208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1849241) by changing a digit.

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, 3042 + ... + 3598.

2^1849240 is an apocalyptic number.

1849240 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 1849240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2109240).

1849240 is an abundant number, since it is smaller than the sum of its proper divisors (2369240).

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

1849240 is a wasteful number, since it uses less digits than its factorization.

1849240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 651 (or 647 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 28.

The square root of 1849240 is about 1359.8676406180. The cubic root of 1849240 is about 122.7432899243.

The spelling of 1849240 in words is "one million, eight hundred forty-nine thousand, two hundred forty".