400113104022 has 96 divisors (see below), whose sum is σ = 911962763712. Its totient is φ = 126536036352.

The previous prime is 400113104021. The next prime is 400113104033. The reversal of 400113104022 is 220401311004.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 400113103986 and 400113104004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (400113104021) 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 47 ways as a sum of consecutive naturals, for example, 96248368 + ... + 96252524.

It is an arithmetic number, because the mean of its divisors is an integer number (9499612122).

Almost surely, 2^400113104022 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 400113104022, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (455981381856).

400113104022 is an abundant number, since it is smaller than the sum of its proper divisors (511849659690).

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

400113104022 is a wasteful number, since it uses less digits than its factorization.

400113104022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6022 (or 6019 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 400113104022 its reverse (220401311004), we get a palindrome (620514415026).

The spelling of 400113104022 in words is "four hundred billion, one hundred thirteen million, one hundred four thousand, twenty-two".