866038092 has 24 divisors (see below), whose sum is σ = 2031231216. Its totient is φ = 287182848.

The previous prime is 866038057. The next prime is 866038093. The reversal of 866038092 is 290830668.

It is not an unprimeable number, because it can be changed into a prime (866038093) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 184653 + ... + 189284.

It is an arithmetic number, because the mean of its divisors is an integer number (84634634).

Almost surely, 2^866038092 is an apocalyptic number.

It is an amenable number.

866038092 is an abundant number, since it is smaller than the sum of its proper divisors (1165193124).

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

866038092 is a wasteful number, since it uses less digits than its factorization.

866038092 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 374137 (or 374135 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 42.

The square root of 866038092 is about 29428.5251414338. The cubic root of 866038092 is about 953.1889480369.

The spelling of 866038092 in words is "eight hundred sixty-six million, thirty-eight thousand, ninety-two".