401443041892 has 12 divisors (see below), whose sum is σ = 704408771836. Its totient is φ = 200183392800.

The previous prime is 401443041871. The next prime is 401443041893. The reversal of 401443041892 is 298140344104.

It can be written as a sum of positive squares in 2 ways, for example, as 148892569956 + 252550471936 = 385866^2 + 502544^2 .

It is a super-2 number, since 2×401443041892² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (401443041893) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 134530359 + ... + 134533342.

Almost surely, 2^401443041892 is an apocalyptic number.

It is an amenable number.

401443041892 is a deficient number, since it is larger than the sum of its proper divisors (302965729944).

401443041892 is a wasteful number, since it uses less digits than its factorization.

401443041892 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 269064078 (or 269064076 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 40.

Adding to 401443041892 its reverse (298140344104), we get a palindrome (699583385996).

The spelling of 401443041892 in words is "four hundred one billion, four hundred forty-three million, forty-one thousand, eight hundred ninety-two".