440070064 has 40 divisors (see below), whose sum is σ = 977080320. Its totient is φ = 188090688.

The previous prime is 440070047. The next prime is 440070073. The reversal of 440070064 is 460070044.

It is a happy number.

It is a super-2 number, since 2×440070064² = 387323322457928192, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37767 + ... + 48025.

It is an arithmetic number, because the mean of its divisors is an integer number (24427008).

Almost surely, 2^440070064 is an apocalyptic number.

It is an amenable number.

440070064 is an abundant number, since it is smaller than the sum of its proper divisors (537010256).

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

440070064 is a wasteful number, since it uses less digits than its factorization.

440070064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10657 (or 10651 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 25.

The square root of 440070064 is about 20977.8469819951. The cubic root of 440070064 is about 760.6308612310.

The spelling of 440070064 in words is "four hundred forty million, seventy thousand, sixty-four".