400805803584 has 224 divisors, whose sum is σ = 1204835385600. Its totient is φ = 130619105280.

The previous prime is 400805803577. The next prime is 400805803627. The reversal of 400805803584 is 485308508004.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 17591752 + ... + 17614520.

It is an arithmetic number, because the mean of its divisors is an integer number (5378729400).

Almost surely, 2^400805803584 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 400805803584, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (602417692800).

400805803584 is an abundant number, since it is smaller than the sum of its proper divisors (804029582016).

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

400805803584 is a wasteful number, since it uses less digits than its factorization.

400805803584 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23018 (or 23002 counting only the distinct ones).

The product of its (nonzero) digits is 614400, while the sum is 45.

The spelling of 400805803584 in words is "four hundred billion, eight hundred five million, eight hundred three thousand, five hundred eighty-four".