400420323104142 has 32 divisors (see below), whose sum is σ = 874092594211200. Its totient is φ = 121277234503520.

The previous prime is 400420323104129. The next prime is 400420323104149. The reversal of 400420323104142 is 241401323024004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (400420323104149) 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, 1556304048 + ... + 1556561315.

It is an arithmetic number, because the mean of its divisors is an integer number (27315393569100).

Almost surely, 2^{400420323104142} is an apocalyptic number.

400420323104142 is an abundant number, since it is smaller than the sum of its proper divisors (473672271107058).

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

400420323104142 is a wasteful number, since it uses less digits than its factorization.

400420323104142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3112867328.

The product of its (nonzero) digits is 18432, while the sum is 30.

Adding to 400420323104142 its reverse (241401323024004), we get a palindrome (641821646128146).

The spelling of 400420323104142 in words is "four hundred trillion, four hundred twenty billion, three hundred twenty-three million, one hundred four thousand, one hundred forty-two".