400424200222056 has 64 divisors (see below), whose sum is σ = 1055391808564800. Its totient is φ = 126252477849600.

The previous prime is 400424200222051. The next prime is 400424200222061. The reversal of 400424200222056 is 650222002424004.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (400424200222051) and next prime (400424200222061).

It is not an unprimeable number, because it can be changed into a prime (400424200222051) 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, 684671235 + ... + 685255826.

It is an arithmetic number, because the mean of its divisors is an integer number (16490497008825).

Almost surely, 2^{400424200222056} is an apocalyptic number.

It is an amenable number.

400424200222056 is an abundant number, since it is smaller than the sum of its proper divisors (654967608342744).

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

400424200222056 is a wasteful number, since it uses less digits than its factorization.

400424200222056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1369927730 (or 1369927726 counting only the distinct ones).

The product of its (nonzero) digits is 61440, while the sum is 33.

The spelling of 400424200222056 in words is "four hundred trillion, four hundred twenty-four billion, two hundred million, two hundred twenty-two thousand, fifty-six".