401001204401 has 24 divisors (see below), whose sum is σ = 476170320960. Its totient is φ = 336627621792.

The previous prime is 401001204391. The next prime is 401001204437. The reversal of 401001204401 is 104402100104.

It is not a de Polignac number, because 401001204401 - 2⁶ = 401001204337 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 401001204401.

It is not an unprimeable number, because it can be changed into a prime (401001204451) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 214940 + ... + 920978.

It is an arithmetic number, because the mean of its divisors is an integer number (19840430040).

Almost surely, 2^401001204401 is an apocalyptic number.

It is an amenable number.

401001204401 is a deficient number, since it is larger than the sum of its proper divisors (75169116559).

401001204401 is a wasteful number, since it uses less digits than its factorization.

401001204401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 706293 (or 706286 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 401001204401 its reverse (104402100104), we get a palindrome (505403304505).

The spelling of 401001204401 in words is "four hundred one billion, one million, two hundred four thousand, four hundred one".