838816422 has 8 divisors (see below), whose sum is σ = 1677632856. Its totient is φ = 279605472.

The previous prime is 838816421. The next prime is 838816439. The reversal of 838816422 is 224618838.

It is a happy number.

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

838816422 is an admirable number.

It is a super-2 number, since 2×838816422² = 1407225979633764168, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (838816421) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 69901363 + ... + 69901374.

It is an arithmetic number, because the mean of its divisors is an integer number (209704107).

Almost surely, 2^838816422 is an apocalyptic number.

838816422 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

838816422 is a wasteful number, since it uses less digits than its factorization.

838816422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139802742.

The product of its digits is 147456, while the sum is 42.

The square root of 838816422 is about 28962.3276343598. The cubic root of 838816422 is about 943.0954323009.

The spelling of 838816422 in words is "eight hundred thirty-eight million, eight hundred sixteen thousand, four hundred twenty-two".