866342290 has 32 divisors (see below), whose sum is σ = 1702394496. Its totient is φ = 314808960.

The previous prime is 866342273. The next prime is 866342329. The reversal of 866342290 is 92243668.

866342290 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 296979 + ... + 299881.

It is an arithmetic number, because the mean of its divisors is an integer number (53199828).

Almost surely, 2^866342290 is an apocalyptic number.

866342290 is a deficient number, since it is larger than the sum of its proper divisors (836052206).

866342290 is a wasteful number, since it uses less digits than its factorization.

866342290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5634.

The product of its (nonzero) digits is 124416, while the sum is 40.

The square root of 866342290 is about 29433.6931084089. The cubic root of 866342290 is about 953.3005382897.

The spelling of 866342290 in words is "eight hundred sixty-six million, three hundred forty-two thousand, two hundred ninety".