838038872 has 64 divisors (see below), whose sum is σ = 1788272640. Its totient is φ = 364723200.

The previous prime is 838038829. The next prime is 838038907. The reversal of 838038872 is 278830838.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 263033 + ... + 266199.

It is an arithmetic number, because the mean of its divisors is an integer number (27941760).

Almost surely, 2^838038872 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 838038872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (894136320).

838038872 is an abundant number, since it is smaller than the sum of its proper divisors (950233768).

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

838038872 is a wasteful number, since it uses less digits than its factorization.

838038872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3312 (or 3308 counting only the distinct ones).

The product of its (nonzero) digits is 516096, while the sum is 47.

The square root of 838038872 is about 28948.9010499535. The cubic root of 838038872 is about 942.8039380271.

The spelling of 838038872 in words is "eight hundred thirty-eight million, thirty-eight thousand, eight hundred seventy-two".