1849806 has 48 divisors (see below), whose sum is σ = 4683744. Its totient is φ = 516672.

The previous prime is 1849759. The next prime is 1849811. The reversal of 1849806 is 6089481.

It is a happy number.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Curzon number.

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, 6540 + ... + 6816.

It is an arithmetic number, because the mean of its divisors is an integer number (97578).

2^1849806 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1849806, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2341872).

1849806 is an abundant number, since it is smaller than the sum of its proper divisors (2833938).

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

1849806 is a wasteful number, since it uses less digits than its factorization.

1849806 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 345 (or 342 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 36.

The square root of 1849806 is about 1360.0757331855. The cubic root of 1849806 is about 122.7558113954.

The spelling of 1849806 in words is "one million, eight hundred forty-nine thousand, eight hundred six".