1938769 has 8 divisors (see below), whose sum is σ = 2238080. Its totient is φ = 1645056.

The previous prime is 1938751. The next prime is 1938773. The reversal of 1938769 is 9678391.

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

It is not a de Polignac number, because 1938769 - 2⁹ = 1938257 is a prime.

It is a super-2 number, since 2×1938769² = 7517650470722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1938719) 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 7 ways as a sum of consecutive naturals, for example, 624 + ... + 2065.

It is an arithmetic number, because the mean of its divisors is an integer number (279760).

2^1938769 is an apocalyptic number.

It is an amenable number.

1938769 is a deficient number, since it is larger than the sum of its proper divisors (299311).

1938769 is a wasteful number, since it uses less digits than its factorization.

1938769 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2799.

The product of its digits is 81648, while the sum is 43.

The square root of 1938769 is about 1392.3968543486. The cubic root of 1938769 is about 124.6929852194.

The spelling of 1938769 in words is "one million, nine hundred thirty-eight thousand, seven hundred sixty-nine".