401401443444052 has 12 divisors (see below), whose sum is σ = 743773262852340. Its totient is φ = 188894796914816.

The previous prime is 401401443443969. The next prime is 401401443444059. The reversal of 401401443444052 is 250444344104104.

It can be written as a sum of positive squares in 2 ways, for example, as 297310151523856 + 104091291920196 = 17242684^2 + 10202514^2 .

It is a super-2 number, since 2×401401443444052² (a number of 30 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 401401443443996 and 401401443444014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (401401443444059) 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, 2951481201727 + ... + 2951481201862.

It is an arithmetic number, because the mean of its divisors is an integer number (61981105237695).

Almost surely, 2^{401401443444052} is an apocalyptic number.

It is an amenable number.

401401443444052 is a deficient number, since it is larger than the sum of its proper divisors (342371819408288).

401401443444052 is a wasteful number, since it uses less digits than its factorization.

401401443444052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5902962403610 (or 5902962403608 counting only the distinct ones).

The product of its (nonzero) digits is 491520, while the sum is 40.

Adding to 401401443444052 its reverse (250444344104104), we get a palindrome (651845787548156).

The spelling of 401401443444052 in words is "four hundred one trillion, four hundred one billion, four hundred forty-three million, four hundred forty-four thousand, fifty-two".