440340401 has 4 divisors (see below), whose sum is σ = 440558400. Its totient is φ = 440122404.

The previous prime is 440340283. The next prime is 440340403. The reversal of 440340401 is 104043044.

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 440340401 - 2²² = 436146097 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (440340403) 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, 105941 + ... + 110018.

It is an arithmetic number, because the mean of its divisors is an integer number (110139600).

Almost surely, 2^440340401 is an apocalyptic number.

It is an amenable number.

440340401 is a deficient number, since it is larger than the sum of its proper divisors (217999).

440340401 is a wasteful number, since it uses less digits than its factorization.

440340401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 217998.

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 440340401 is about 20984.2893851567. The cubic root of 440340401 is about 760.7865823237.

Adding to 440340401 its reverse (104043044), we get a palindrome (544383445).

The spelling of 440340401 in words is "four hundred forty million, three hundred forty thousand, four hundred one".