402144423041 has 4 divisors (see below), whose sum is σ = 402258058800. Its totient is φ = 402030787284.

The previous prime is 402144423029. The next prime is 402144423047. The reversal of 402144423041 is 140324441204.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-402144423041 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 402144422995 and 402144423013.

It is not an unprimeable number, because it can be changed into a prime (402144423047) 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 3 ways as a sum of consecutive naturals, for example, 56812571 + ... + 56819648.

It is an arithmetic number, because the mean of its divisors is an integer number (100564514700).

Almost surely, 2^402144423041 is an apocalyptic number.

It is an amenable number.

402144423041 is a deficient number, since it is larger than the sum of its proper divisors (113635759).

402144423041 is a wasteful number, since it uses less digits than its factorization.

402144423041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113635758.

The product of its (nonzero) digits is 12288, while the sum is 29.

Adding to 402144423041 its reverse (140324441204), we get a palindrome (542468864245).

The spelling of 402144423041 in words is "four hundred two billion, one hundred forty-four million, four hundred twenty-three thousand, forty-one".