400808044448 has 24 divisors (see below), whose sum is σ = 901818100512. Its totient is φ = 171774876096.

The previous prime is 400808044433. The next prime is 400808044477. The reversal of 400808044448 is 844440808004.

It is a junction number, because it is equal to n+sod(n) for n = 400808044399 and 400808044408.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 894660590 + ... + 894661037.

It is an arithmetic number, because the mean of its divisors is an integer number (37575754188).

Almost surely, 2^400808044448 is an apocalyptic number.

It is an amenable number.

400808044448 is an abundant number, since it is smaller than the sum of its proper divisors (501010056064).

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

400808044448 is a wasteful number, since it uses less digits than its factorization.

400808044448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1789321644 (or 1789321636 counting only the distinct ones).

The product of its (nonzero) digits is 524288, while the sum is 44.

The spelling of 400808044448 in words is "four hundred billion, eight hundred eight million, forty-four thousand, four hundred forty-eight".