838036836 has 144 divisors (see below), whose sum is σ = 2617550208. Its totient is φ = 220147200.

The previous prime is 838036817. The next prime is 838036853. The reversal of 838036836 is 638630838.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 838036791 and 838036800.

It is an unprimeable number.

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 47 ways as a sum of consecutive naturals, for example, 1608256 + ... + 1608776.

It is an arithmetic number, because the mean of its divisors is an integer number (18177432).

Almost surely, 2^838036836 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 838036836, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1308775104).

838036836 is an abundant number, since it is smaller than the sum of its proper divisors (1779513372).

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

838036836 is a wasteful number, since it uses less digits than its factorization.

838036836 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1042 (or 1037 counting only the distinct ones).

The product of its (nonzero) digits is 497664, while the sum is 45.

The square root of 838036836 is about 28948.8658845213. The cubic root of 838036836 is about 942.8031745182.

The spelling of 838036836 in words is "eight hundred thirty-eight million, thirty-six thousand, eight hundred thirty-six".