400051122242140 has 48 divisors (see below), whose sum is σ = 889602909747552. Its totient is φ = 150594364153856.

The previous prime is 400051122242129. The next prime is 400051122242179. The reversal of 400051122242140 is 41242221150004.

It is a junction number, because it is equal to n+sod(n) for n = 400051122242099 and 400051122242108.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 47328949 + ... + 55137388.

It is an arithmetic number, because the mean of its divisors is an integer number (18533393953074).

Almost surely, 2^{400051122242140} is an apocalyptic number.

It is an amenable number.

400051122242140 is an abundant number, since it is smaller than the sum of its proper divisors (489551787505412).

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

400051122242140 is a wasteful number, since it uses less digits than its factorization.

400051122242140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102477846 (or 102477844 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 28.

Adding to 400051122242140 its reverse (41242221150004), we get a palindrome (441293343392144).

The spelling of 400051122242140 in words is "four hundred trillion, fifty-one billion, one hundred twenty-two million, two hundred forty-two thousand, one hundred forty".