400848052528 has 80 divisors (see below), whose sum is σ = 969338672640. Its totient is φ = 156004185600.

The previous prime is 400848052469. The next prime is 400848052597. The reversal of 400848052528 is 825250848004.

It is a super-2 number, since 2×400848052528² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 955188 + ... + 1309228.

It is an arithmetic number, because the mean of its divisors is an integer number (12116733408).

Almost surely, 2^400848052528 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 400848052528, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (484669336320).

400848052528 is an abundant number, since it is smaller than the sum of its proper divisors (568490620112).

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

400848052528 is a wasteful number, since it uses less digits than its factorization.

400848052528 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 354986 (or 354980 counting only the distinct ones).

The product of its (nonzero) digits is 819200, while the sum is 46.

The spelling of 400848052528 in words is "four hundred billion, eight hundred forty-eight million, fifty-two thousand, five hundred twenty-eight".