400420440224016 has 20 divisors (see below), whose sum is σ = 1034419470578832. Its totient is φ = 133473480074656.

The previous prime is 400420440223997. The next prime is 400420440224027. The reversal of 400420440224016 is 610422044024004.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4171046252286 + ... + 4171046252381.

Almost surely, 2^{400420440224016} is an apocalyptic number.

It is an amenable number.

400420440224016 is an abundant number, since it is smaller than the sum of its proper divisors (633999030354816).

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

400420440224016 is a wasteful number, since it uses less digits than its factorization.

400420440224016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8342092504678 (or 8342092504672 counting only the distinct ones).

The product of its (nonzero) digits is 49152, while the sum is 33.

The spelling of 400420440224016 in words is "four hundred trillion, four hundred twenty billion, four hundred forty million, two hundred twenty-four thousand, sixteen".