440066466 has 64 divisors (see below), whose sum is σ = 1126287360. Its totient is φ = 124759440.

The previous prime is 440066351. The next prime is 440066479. The reversal of 440066466 is 664660044.

It is a happy number.

440066466 is a `hidden beast` number, since 4 + 4 + 0 + 0 + 6 + 646 + 6 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 440066466.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 45075 + ... + 53961.

It is an arithmetic number, because the mean of its divisors is an integer number (17598240).

Almost surely, 2^440066466 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 440066466, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (563143680).

440066466 is an abundant number, since it is smaller than the sum of its proper divisors (686220894).

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

440066466 is a wasteful number, since it uses less digits than its factorization.

440066466 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9036 (or 9030 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 36.

The square root of 440066466 is about 20977.7612246874. The cubic root of 440066466 is about 760.6287882601.

The spelling of 440066466 in words is "four hundred forty million, sixty-six thousand, four hundred sixty-six".