838881612 has 72 divisors (see below), whose sum is σ = 2184764400. Its totient is φ = 271202688.

The previous prime is 838881587. The next prime is 838881679. The reversal of 838881612 is 216188838.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 517339 + ... + 518957.

It is an arithmetic number, because the mean of its divisors is an integer number (30343950).

Almost surely, 2^838881612 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 838881612, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1092382200).

838881612 is an abundant number, since it is smaller than the sum of its proper divisors (1345882788).

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

838881612 is a wasteful number, since it uses less digits than its factorization.

838881612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2055 (or 2050 counting only the distinct ones).

The product of its digits is 147456, while the sum is 45.

The square root of 838881612 is about 28963.4530399951. The cubic root of 838881612 is about 943.1198630731.

It can be divided in two parts, 8388 and 81612, that added together give a square (90000 = 300²).

The spelling of 838881612 in words is "eight hundred thirty-eight million, eight hundred eighty-one thousand, six hundred twelve".