838656000 has 672 divisors, whose sum is σ = 3721169088. Its totient is φ = 176947200.

The previous prime is 838655977. The next prime is 838656001. The reversal of 838656000 is 656838.

It is a tau number, because it is divible by the number of its divisors (672).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (838656001) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 64511994 + ... + 64512006.

It is an arithmetic number, because the mean of its divisors is an integer number (5537454).

Almost surely, 2^838656000 is an apocalyptic number.

838656000 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 838656000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1860584544).

838656000 is an abundant number, since it is smaller than the sum of its proper divisors (2882513088).

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

838656000 is a wasteful number, since it uses less digits than its factorization.

838656000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67 (or 30 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 36.

The square root of 838656000 is about 28959.5580076768. The cubic root of 838656000 is about 943.0353067489.

The spelling of 838656000 in words is "eight hundred thirty-eight million, six hundred fifty-six thousand".