401344005 has 16 divisors (see below), whose sum is σ = 643480704. Its totient is φ = 213606720.

The previous prime is 401343977. The next prime is 401344051. The reversal of 401344005 is 500443104.

It is not a de Polignac number, because 401344005 - 2¹¹ = 401341957 is a prime.

It is a super-2 number, since 2×401344005² = 322154020698880050, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20166 + ... + 34775.

It is an arithmetic number, because the mean of its divisors is an integer number (40217544).

Almost surely, 2^401344005 is an apocalyptic number.

It is an amenable number.

401344005 is a deficient number, since it is larger than the sum of its proper divisors (242136699).

401344005 is a wasteful number, since it uses less digits than its factorization.

401344005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55436.

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 401344005 is about 20033.5719481075. The cubic root of 401344005 is about 737.6306033185.

Adding to 401344005 its reverse (500443104), we get a palindrome (901787109).

Subtracting 401344005 from its reverse (500443104), we obtain a palindrome (99099099).

The spelling of 401344005 in words is "four hundred one million, three hundred forty-four thousand, five".