440600664 has 32 divisors (see below), whose sum is σ = 1258859520. Its totient is φ = 125885856.

The previous prime is 440600663. The next prime is 440600669. The reversal of 440600664 is 466006044.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (440600663) 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, 1311144 + ... + 1311479.

It is an arithmetic number, because the mean of its divisors is an integer number (39339360).

Almost surely, 2^440600664 is an apocalyptic number.

It is an amenable number.

440600664 is an abundant number, since it is smaller than the sum of its proper divisors (818258856).

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

440600664 is a wasteful number, since it uses less digits than its factorization.

440600664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2622639 (or 2622635 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 30.

The square root of 440600664 is about 20990.4898465948. The cubic root of 440600664 is about 760.9364403279.

The spelling of 440600664 in words is "four hundred forty million, six hundred thousand, six hundred sixty-four".