1849989 has 8 divisors (see below), whose sum is σ = 2524192. Its totient is φ = 1204560.

The previous prime is 1849979. The next prime is 1850021. The reversal of 1849989 is 9899481.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1849989 - 2⁸ = 1849733 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1849909) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7042 + ... + 7299.

It is an arithmetic number, because the mean of its divisors is an integer number (315524).

2^1849989 is an apocalyptic number.

It is an amenable number.

1849989 is a deficient number, since it is larger than the sum of its proper divisors (674203).

1849989 is a wasteful number, since it uses less digits than its factorization.

1849989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14387.

The product of its digits is 186624, while the sum is 48.

The square root of 1849989 is about 1360.1430071871. The cubic root of 1849989 is about 122.7598593104.

The spelling of 1849989 in words is "one million, eight hundred forty-nine thousand, nine hundred eighty-nine".