838001538 has 64 divisors (see below), whose sum is σ = 2056717440. Its totient is φ = 253925280.

The previous prime is 838001533. The next prime is 838001539. The reversal of 838001538 is 835100838.

It is a happy number.

838001538 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (838001531) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 39406 + ... + 56822.

It is an arithmetic number, because the mean of its divisors is an integer number (32136210).

Almost surely, 2^838001538 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 838001538, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1028358720).

838001538 is an abundant number, since it is smaller than the sum of its proper divisors (1218715902).

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

838001538 is a wasteful number, since it uses less digits than its factorization.

838001538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17451 (or 17433 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 36.

The square root of 838001538 is about 28948.2562169123. The cubic root of 838001538 is about 942.7899374176.

The spelling of 838001538 in words is "eight hundred thirty-eight million, one thousand, five hundred thirty-eight".