4000440505 has 8 divisors (see below), whose sum is σ = 4807209600. Its totient is φ = 3195898416.

The previous prime is 4000440497. The next prime is 4000440511. The reversal of 4000440505 is 5050440004.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 4000440505 - 2³ = 4000440497 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 552795 + ... + 559984.

It is an arithmetic number, because the mean of its divisors is an integer number (600901200).

Almost surely, 2^4000440505 is an apocalyptic number.

It is an amenable number.

4000440505 is a deficient number, since it is larger than the sum of its proper divisors (806769095).

4000440505 is a wasteful number, since it uses less digits than its factorization.

4000440505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1113503.

The product of its (nonzero) digits is 1600, while the sum is 22.

The square root of 4000440505 is about 63249.0356052960. The cubic root of 4000440505 is about 1587.4593213376.

Adding to 4000440505 its reverse (5050440004), we get a palindrome (9050880509).

The spelling of 4000440505 in words is "four billion, four hundred forty thousand, five hundred five".