401355404041 has 4 divisors (see below), whose sum is σ = 401363222932. Its totient is φ = 401347585152.

The previous prime is 401355404029. The next prime is 401355404059. The reversal of 401355404041 is 140404553104.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 390338802441 + 11016601600 = 624771^2 + 104960^2 .

It is a cyclic number.

It is not a de Polignac number, because 401355404041 - 2¹⁵ = 401355371273 is a prime.

It is a super-2 number, since 2×401355404041² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 401355403994 and 401355404012.

It is not an unprimeable number, because it can be changed into a prime (401355404441) 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, 3831936 + ... + 3935281.

It is an arithmetic number, because the mean of its divisors is an integer number (100340805733).

Almost surely, 2^401355404041 is an apocalyptic number.

It is an amenable number.

401355404041 is a deficient number, since it is larger than the sum of its proper divisors (7818891).

401355404041 is an equidigital number, since it uses as much as digits as its factorization.

401355404041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7818890.

The product of its (nonzero) digits is 19200, while the sum is 31.

Adding to 401355404041 its reverse (140404553104), we get a palindrome (541759957145).

The spelling of 401355404041 in words is "four hundred one billion, three hundred fifty-five million, four hundred four thousand, forty-one".