838020828 has 12 divisors (see below), whose sum is σ = 1955381960. Its totient is φ = 279340272.

The previous prime is 838020787. The next prime is 838020829. The reversal of 838020828 is 828020838.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (838020829) 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, 34917523 + ... + 34917546.

Almost surely, 2^838020828 is an apocalyptic number.

It is an amenable number.

838020828 is an abundant number, since it is smaller than the sum of its proper divisors (1117361132).

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

838020828 is a wasteful number, since it uses less digits than its factorization.

838020828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69835076 (or 69835074 counting only the distinct ones).

The product of its (nonzero) digits is 49152, while the sum is 39.

The square root of 838020828 is about 28948.5893956856. The cubic root of 838020828 is about 942.7971714053.

The spelling of 838020828 in words is "eight hundred thirty-eight million, twenty thousand, eight hundred twenty-eight".