440009225921 has 8 divisors (see below), whose sum is σ = 440383123584. Its totient is φ = 439635407040.

The previous prime is 440009225891. The next prime is 440009225963. The reversal of 440009225921 is 129522900044.

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 440009225921 - 2¹⁴ = 440009209537 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (440009225021) 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, 17376956 + ... + 17402258.

It is an arithmetic number, because the mean of its divisors is an integer number (55047890448).

Almost surely, 2^440009225921 is an apocalyptic number.

It is an amenable number.

440009225921 is a deficient number, since it is larger than the sum of its proper divisors (373897663).

440009225921 is a wasteful number, since it uses less digits than its factorization.

440009225921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39391.

The product of its (nonzero) digits is 51840, while the sum is 38.

The spelling of 440009225921 in words is "four hundred forty billion, nine million, two hundred twenty-five thousand, nine hundred twenty-one".