868297380 has 96 divisors (see below), whose sum is σ = 2552304384. Its totient is φ = 220137984.

The previous prime is 868297361. The next prime is 868297387. The reversal of 868297380 is 83792868.

It is a super-2 number, since 2×868297380² = 1507880680229728800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (868297387) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 236922 + ... + 240558.

It is an arithmetic number, because the mean of its divisors is an integer number (26586504).

Almost surely, 2^868297380 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 868297380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1276152192).

868297380 is an abundant number, since it is smaller than the sum of its proper divisors (1684007004).

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

868297380 is a wasteful number, since it uses less digits than its factorization.

868297380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3845 (or 3843 counting only the distinct ones).

The product of its (nonzero) digits is 1161216, while the sum is 51.

The square root of 868297380 is about 29466.8861605701. The cubic root of 868297380 is about 954.0171096000.

The spelling of 868297380 in words is "eight hundred sixty-eight million, two hundred ninety-seven thousand, three hundred eighty".