440120001 has 4 divisors (see below), whose sum is σ = 586826672. Its totient is φ = 293413332.

The previous prime is 440119969. The next prime is 440120017. The reversal of 440120001 is 100021044.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 440120001 - 2⁵ = 440119969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (440120071) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 73353331 + ... + 73353336.

It is an arithmetic number, because the mean of its divisors is an integer number (146706668).

Almost surely, 2^440120001 is an apocalyptic number.

It is an amenable number.

440120001 is a deficient number, since it is larger than the sum of its proper divisors (146706671).

440120001 is a wasteful number, since it uses less digits than its factorization.

440120001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146706670.

The product of its (nonzero) digits is 32, while the sum is 12.

The square root of 440120001 is about 20979.0371800042. The cubic root of 440120001 is about 760.6596310337.

Adding to 440120001 its reverse (100021044), we get a palindrome (540141045).

The spelling of 440120001 in words is "four hundred forty million, one hundred twenty thousand, one".