401444511404 has 24 divisors (see below), whose sum is σ = 714128251200. Its totient is φ = 197408638080.

The previous prime is 401444511397. The next prime is 401444511407. The reversal of 401444511404 is 404115444104.

It is a super-2 number, since 2×401444511404² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (401444511407) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2096717 + ... + 2280155.

It is an arithmetic number, because the mean of its divisors is an integer number (29755343800).

Almost surely, 2^401444511404 is an apocalyptic number.

It is an amenable number.

401444511404 is a deficient number, since it is larger than the sum of its proper divisors (312683739796).

401444511404 is a wasteful number, since it uses less digits than its factorization.

401444511404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 192473 (or 192471 counting only the distinct ones).

The product of its (nonzero) digits is 20480, while the sum is 32.

Adding to 401444511404 its reverse (404115444104), we get a palindrome (805559955508).

The spelling of 401444511404 in words is "four hundred one billion, four hundred forty-four million, five hundred eleven thousand, four hundred four".