440540517221 has 8 divisors (see below), whose sum is σ = 507096999360. Its totient is φ = 374889565728.

The previous prime is 440540517187. The next prime is 440540517229. The reversal of 440540517221 is 122715045044.

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 440540517221 - 2¹⁰ = 440540516197 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (440540517229) 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, 226381616 + ... + 226383561.

It is an arithmetic number, because the mean of its divisors is an integer number (63387124920).

Almost surely, 2^440540517221 is an apocalyptic number.

It is an amenable number.

440540517221 is a deficient number, since it is larger than the sum of its proper divisors (66556482139).

440540517221 is a wasteful number, since it uses less digits than its factorization.

440540517221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 452765323.

The product of its (nonzero) digits is 44800, while the sum is 35.

The spelling of 440540517221 in words is "four hundred forty billion, five hundred forty million, five hundred seventeen thousand, two hundred twenty-one".