400224344040042 has 16 divisors (see below), whose sum is σ = 800448909624000. Its totient is φ = 133408077756032.

The previous prime is 400224344040011. The next prime is 400224344040049. The reversal of 400224344040042 is 240040443422004.

It is a junction number, because it is equal to n+sod(n) for n = 400224344039985 and 400224344040012.

It is not an unprimeable number, because it can be changed into a prime (400224344040049) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22807459 + ... + 36340457.

It is an arithmetic number, because the mean of its divisors is an integer number (50028056851500).

Almost surely, 2^{400224344040042} is an apocalyptic number.

400224344040042 is an abundant number, since it is smaller than the sum of its proper divisors (400224565583958).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

400224344040042 is a wasteful number, since it uses less digits than its factorization.

400224344040042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18461997.

The product of its (nonzero) digits is 98304, while the sum is 33.

Adding to 400224344040042 its reverse (240040443422004), we get a palindrome (640264787462046).

The spelling of 400224344040042 in words is "four hundred trillion, two hundred twenty-four billion, three hundred forty-four million, forty thousand, forty-two".