1849140 has 36 divisors (see below), whose sum is σ = 5609604. Its totient is φ = 493056.

The previous prime is 1849109. The next prime is 1849147. The reversal of 1849140 is 419481.

It can be written as a sum of positive squares in 2 ways, for example, as 535824 + 1313316 = 732^2 + 1146^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1849147) 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 11 ways as a sum of consecutive naturals, for example, 4957 + ... + 5316.

2^1849140 is an apocalyptic number.

1849140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1849140 is an abundant number, since it is smaller than the sum of its proper divisors (3760464).

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

1849140 is a wasteful number, since it uses less digits than its factorization.

1849140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10288 (or 10283 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 27.

The square root of 1849140 is about 1359.8308718366. The cubic root of 1849140 is about 122.7410773847.

The spelling of 1849140 in words is "one million, eight hundred forty-nine thousand, one hundred forty".