1938849 has 16 divisors (see below), whose sum is σ = 2890944. Its totient is φ = 1145600.

The previous prime is 1938847. The next prime is 1938851. The reversal of 1938849 is 9488391.

It is an interprime number because it is at equal distance from previous prime (1938847) and next prime (1938851).

It is a cyclic number.

It is not a de Polignac number, because 1938849 - 2¹ = 1938847 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1938849.

It is not an unprimeable number, because it can be changed into a prime (1938847) 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 15 ways as a sum of consecutive naturals, for example, 637 + ... + 2069.

It is an arithmetic number, because the mean of its divisors is an integer number (180684).

2^1938849 is an apocalyptic number.

It is an amenable number.

1938849 is a deficient number, since it is larger than the sum of its proper divisors (952095).

1938849 is a wasteful number, since it uses less digits than its factorization.

1938849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1488.

The product of its digits is 62208, while the sum is 42.

The square root of 1938849 is about 1392.4255814944. The cubic root of 1938849 is about 124.6947002770.

The spelling of 1938849 in words is "one million, nine hundred thirty-eight thousand, eight hundred forty-nine".