400852480000 has 260 divisors, whose sum is σ = 1144837722160. Its totient is φ = 137428992000.

The previous prime is 400852479947. The next prime is 400852480087. The reversal of 400852480000 is 84258004.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 17908816 + ... + 17931184.

Almost surely, 2^400852480000 is an apocalyptic number.

400852480000 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 400852480000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (572418861080).

400852480000 is an abundant number, since it is smaller than the sum of its proper divisors (743985242160).

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

400852480000 is an frugal number, since it uses more digits than its factorization.

400852480000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22420 (or 22383 counting only the distinct ones).

The product of its (nonzero) digits is 10240, while the sum is 31.

The spelling of 400852480000 in words is "four hundred billion, eight hundred fifty-two million, four hundred eighty thousand".