400870988976 has 160 divisors (see below), whose sum is σ = 1102794972160. Its totient is φ = 125118701568.

The previous prime is 400870988897. The next prime is 400870988989. The reversal of 400870988976 is 679889078004.

It is a super-3 number, since 3×400870988976³ (a number of 36 digits) contains 333 as substring.

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, 77580345 + ... + 77585511.

It is an arithmetic number, because the mean of its divisors is an integer number (6892468576).

Almost surely, 2^400870988976 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 400870988976, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (551397486080).

400870988976 is an abundant number, since it is smaller than the sum of its proper divisors (701923983184).

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

400870988976 is a wasteful number, since it uses less digits than its factorization.

400870988976 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6171 (or 6165 counting only the distinct ones).

The product of its (nonzero) digits is 48771072, while the sum is 66.

The spelling of 400870988976 in words is "four hundred billion, eight hundred seventy million, nine hundred eighty-eight thousand, nine hundred seventy-six".