838549628 has 48 divisors (see below), whose sum is σ = 1736448000. Its totient is φ = 346731840.

The previous prime is 838549561. The next prime is 838549637. The reversal of 838549628 is 826945838.

It is a self number, because there is not a number n which added to its sum of digits gives 838549628.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 327698 + ... + 330246.

It is an arithmetic number, because the mean of its divisors is an integer number (36176000).

Almost surely, 2^838549628 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 838549628, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (868224000).

838549628 is an abundant number, since it is smaller than the sum of its proper divisors (897898372).

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

838549628 is a wasteful number, since it uses less digits than its factorization.

838549628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2970 (or 2968 counting only the distinct ones).

The product of its digits is 3317760, while the sum is 53.

The square root of 838549628 is about 28957.7213882584. The cubic root of 838549628 is about 942.9954347024.

The spelling of 838549628 in words is "eight hundred thirty-eight million, five hundred forty-nine thousand, six hundred twenty-eight".