1849445 has 16 divisors (see below), whose sum is σ = 2457840. Its totient is φ = 1327104.

The previous prime is 1849439. The next prime is 1849451. The reversal of 1849445 is 5449481.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1849439) and next prime (1849451).

It can be written as a sum of positive squares in 8 ways, for example, as 16129 + 1833316 = 127^2 + 1354^2 .

It is a cyclic number.

It is not a de Polignac number, because 1849445 - 2⁶ = 1849381 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2021 + ... + 2789.

It is an arithmetic number, because the mean of its divisors is an integer number (153615).

2^1849445 is an apocalyptic number.

It is an amenable number.

1849445 is a deficient number, since it is larger than the sum of its proper divisors (608395).

1849445 is a wasteful number, since it uses less digits than its factorization.

1849445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 824.

The product of its digits is 23040, while the sum is 35.

The square root of 1849445 is about 1359.9430135120. The cubic root of 1849445 is about 122.7478253811.

The spelling of 1849445 in words is "one million, eight hundred forty-nine thousand, four hundred forty-five".