4356440866 has 4 divisors (see below), whose sum is σ = 6534661302. Its totient is φ = 2178220432.

The previous prime is 4356440863. The next prime is 4356440873. The reversal of 4356440866 is 6680446534.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 3198468025 + 1157972841 = 56555^2 + 34029^2 .

It is not an unprimeable number, because it can be changed into a prime (4356440863) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1089110215 + ... + 1089110218.

Almost surely, 2^4356440866 is an apocalyptic number.

4356440866 is a deficient number, since it is larger than the sum of its proper divisors (2178220436).

4356440866 is a wasteful number, since it uses less digits than its factorization.

4356440866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2178220435.

The product of its (nonzero) digits is 1658880, while the sum is 46.

The square root of 4356440866 is about 66003.3398094369. The cubic root of 4356440866 is about 1633.2171854194.

The spelling of 4356440866 in words is "four billion, three hundred fifty-six million, four hundred forty thousand, eight hundred sixty-six".