838861376 has 56 divisors (see below), whose sum is σ = 1690856664. Its totient is φ = 412876800.

The previous prime is 838861367. The next prime is 838861391. The reversal of 838861376 is 673168838.

It can be written as a sum of positive squares in 4 ways, for example, as 11723776 + 827137600 = 3424^2 + 28760^2 .

It is a super-2 number, since 2×838861376² = 1407376816289226752, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1395476 + ... + 1396076.

It is an arithmetic number, because the mean of its divisors is an integer number (30193869).

Almost surely, 2^838861376 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 838861376, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (845428332).

838861376 is an abundant number, since it is smaller than the sum of its proper divisors (851995288).

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

838861376 is a wasteful number, since it uses less digits than its factorization.

838861376 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 919 (or 909 counting only the distinct ones).

The product of its digits is 1161216, while the sum is 50.

The square root of 838861376 is about 28963.1037010884. The cubic root of 838861376 is about 943.1122795131.

The spelling of 838861376 in words is "eight hundred thirty-eight million, eight hundred sixty-one thousand, three hundred seventy-six".