866441088 has 96 divisors (see below), whose sum is σ = 2527674240. Its totient is φ = 284829696.

The previous prime is 866441083. The next prime is 866441113. The reversal of 866441088 is 880144668.

It is a tau number, because it is divible by the number of its divisors (96).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (866441083) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 78945 + ... + 89247.

It is an arithmetic number, because the mean of its divisors is an integer number (26329940).

Almost surely, 2^866441088 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 866441088, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1263837120).

866441088 is an abundant number, since it is smaller than the sum of its proper divisors (1661233152).

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

866441088 is a wasteful number, since it uses less digits than its factorization.

866441088 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10396 (or 10381 counting only the distinct ones).

The product of its (nonzero) digits is 294912, while the sum is 45.

The square root of 866441088 is about 29435.3713752689. The cubic root of 866441088 is about 953.3367751627.

The spelling of 866441088 in words is "eight hundred sixty-six million, four hundred forty-one thousand, eighty-eight".