838194469 has 16 divisors (see below), whose sum is σ = 1016150400. Its totient is φ = 674947584.

The previous prime is 838194421. The next prime is 838194491. The reversal of 838194469 is 964491838.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-838194469 is a prime.

It is a super-2 number, since 2×838194469² = 1405139935724383922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (838194499) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 61522 + ... + 73900.

It is an arithmetic number, because the mean of its divisors is an integer number (63509400).

Almost surely, 2^838194469 is an apocalyptic number.

It is an amenable number.

838194469 is a deficient number, since it is larger than the sum of its proper divisors (177955931).

838194469 is a wasteful number, since it uses less digits than its factorization.

838194469 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12972.

The product of its digits is 1492992, while the sum is 52.

The square root of 838194469 is about 28951.5883674799. The cubic root of 838194469 is about 942.8622839229.

It can be divided in two parts, 83819 and 4469, that added together give a palindrome (88288).

The spelling of 838194469 in words is "eight hundred thirty-eight million, one hundred ninety-four thousand, four hundred sixty-nine".