1849005 has 24 divisors (see below), whose sum is σ = 3394872. Its totient is φ = 927744.

The previous prime is 1848997. The next prime is 1849013. The reversal of 1849005 is 5009481.

It is an interprime number because it is at equal distance from previous prime (1848997) and next prime (1849013).

It can be written as a sum of positive squares in 4 ways, for example, as 915849 + 933156 = 957^2 + 966^2 .

It is not a de Polignac number, because 1849005 - 2³ = 1848997 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1849005.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 444 + ... + 1973.

It is an arithmetic number, because the mean of its divisors is an integer number (141453).

2^1849005 is an apocalyptic number.

1849005 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1849005 is a deficient number, since it is larger than the sum of its proper divisors (1545867).

1849005 is a wasteful number, since it uses less digits than its factorization.

1849005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2445 (or 2442 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 27.

The square root of 1849005 is about 1359.7812324047. The cubic root of 1849005 is about 122.7380903297.

The spelling of 1849005 in words is "one million, eight hundred forty-nine thousand, five".