440400401 has 4 divisors (see below), whose sum is σ = 503314752. Its totient is φ = 377486052.

The previous prime is 440400383. The next prime is 440400413. The reversal of 440400401 is 104004044.

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 a cyclic number.

It is not a de Polignac number, because 440400401 - 2¹⁴ = 440384017 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 440400401.

It is not an unprimeable number, because it can be changed into a prime (440400421) 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 3 ways as a sum of consecutive naturals, for example, 31457165 + ... + 31457178.

It is an arithmetic number, because the mean of its divisors is an integer number (125828688).

Almost surely, 2^440400401 is an apocalyptic number.

It is an amenable number.

440400401 is a deficient number, since it is larger than the sum of its proper divisors (62914351).

440400401 is an equidigital number, since it uses as much as digits as its factorization.

440400401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62914350.

The product of its (nonzero) digits is 256, while the sum is 17.

The square root of 440400401 is about 20985.7189774380. The cubic root of 440400401 is about 760.8211352300.

Adding to 440400401 its reverse (104004044), we get a palindrome (544404445).

The spelling of 440400401 in words is "four hundred forty million, four hundred thousand, four hundred one".