400442101441023 has 16 divisors (see below), whose sum is σ = 533992789872000. Its totient is φ = 266926409328480.

The previous prime is 400442101441001. The next prime is 400442101441043. The reversal of 400442101441023 is 320144101244004.

It is a happy number.

It is not a de Polignac number, because 400442101441023 - 2⁶ = 400442101440959 is a prime.

It is a super-2 number, since 2×400442101441023² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (400442101441043) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 721670533 + ... + 722225201.

It is an arithmetic number, because the mean of its divisors is an integer number (33374549367000).

Almost surely, 2^{400442101441023} is an apocalyptic number.

400442101441023 is a deficient number, since it is larger than the sum of its proper divisors (133550688430977).

400442101441023 is a wasteful number, since it uses less digits than its factorization.

400442101441023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 585782.

The product of its (nonzero) digits is 12288, while the sum is 30.

Adding to 400442101441023 its reverse (320144101244004), we get a palindrome (720586202685027).

The spelling of 400442101441023 in words is "four hundred trillion, four hundred forty-two billion, one hundred one million, four hundred forty-one thousand, twenty-three".