440734866 has 64 divisors (see below), whose sum is σ = 1071342720. Its totient is φ = 119024640.

The previous prime is 440734859. The next prime is 440734873. The reversal of 440734866 is 668437044.

It is an interprime number because it is at equal distance from previous prime (440734859) and next prime (440734873).

It is an unprimeable number.

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 in 31 ways as a sum of consecutive naturals, for example, 16026 + ... + 33738.

It is an arithmetic number, because the mean of its divisors is an integer number (16739730).

Almost surely, 2^440734866 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 440734866, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (535671360).

440734866 is an abundant number, since it is smaller than the sum of its proper divisors (630607854).

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

440734866 is a wasteful number, since it uses less digits than its factorization.

440734866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17771.

The product of its (nonzero) digits is 387072, while the sum is 42.

The square root of 440734866 is about 20993.6863366108. The cubic root of 440734866 is about 761.0136900418.

The spelling of 440734866 in words is "four hundred forty million, seven hundred thirty-four thousand, eight hundred sixty-six".