440111001 has 12 divisors (see below), whose sum is σ = 645011696. Its totient is φ = 266733720.

The previous prime is 440110997. The next prime is 440111017. The reversal of 440111001 is 100111044.

It is not a de Polignac number, because 440111001 - 2² = 440110997 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (440111051) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 605851 + ... + 606576.

Almost surely, 2^440111001 is an apocalyptic number.

It is an amenable number.

440111001 is a deficient number, since it is larger than the sum of its proper divisors (204900695).

440111001 is a wasteful number, since it uses less digits than its factorization.

440111001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1212452 (or 1212441 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

The square root of 440111001 is about 20978.8226790733. The cubic root of 440111001 is about 760.6544460967.

Adding to 440111001 its reverse (100111044), we get a palindrome (540222045).

The spelling of 440111001 in words is "four hundred forty million, one hundred eleven thousand, one".