402444020041 has 16 divisors (see below), whose sum is σ = 470968992000. Its totient is φ = 336742705728.

The previous prime is 402444020021. The next prime is 402444020063. The reversal of 402444020041 is 140020444204.

It is a cyclic number.

It is not a de Polignac number, because 402444020041 - 2⁹ = 402444019529 is a prime.

It is a super-2 number, since 2×402444020041² (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 = 402444019988 and 402444020015.

It is not an unprimeable number, because it can be changed into a prime (402444020021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2651686 + ... + 2799343.

It is an arithmetic number, because the mean of its divisors is an integer number (29435562000).

Almost surely, 2^402444020041 is an apocalyptic number.

It is an amenable number.

402444020041 is a deficient number, since it is larger than the sum of its proper divisors (68524971959).

402444020041 is a wasteful number, since it uses less digits than its factorization.

402444020041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5451288.

The product of its (nonzero) digits is 4096, while the sum is 25.

Adding to 402444020041 its reverse (140020444204), we get a palindrome (542464464245).

The spelling of 402444020041 in words is "four hundred two billion, four hundred forty-four million, twenty thousand, forty-one".