838021068 has 54 divisors (see below), whose sum is σ = 2235724764. Its totient is φ = 264634128.

The previous prime is 838021061. The next prime is 838021097. The reversal of 838021068 is 860120838.

838021068 is a `hidden beast` number, since 8 + 380 + 210 + 68 = 666.

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

It is not an unprimeable number, because it can be changed into a prime (838021061) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 19246 + ... + 45237.

Almost surely, 2^838021068 is an apocalyptic number.

It is an amenable number.

838021068 is an abundant number, since it is smaller than the sum of its proper divisors (1397703696).

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

838021068 is a wasteful number, since it uses less digits than its factorization.

838021068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64531 (or 64507 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 36.

The square root of 838021068 is about 28948.5935409650. The cubic root of 838021068 is about 942.7972614075.

The spelling of 838021068 in words is "eight hundred thirty-eight million, twenty-one thousand, sixty-eight".