400080404880 has 480 divisors, whose sum is σ = 1498674078720. Its totient is φ = 95021015040.

The previous prime is 400080404879. The next prime is 400080404897. The reversal of 400080404880 is 88404080004.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 31227916 + ... + 31240724.

It is an arithmetic number, because the mean of its divisors is an integer number (3122237664).

Almost surely, 2^400080404880 is an apocalyptic number.

400080404880 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 400080404880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (749337039360).

400080404880 is an abundant number, since it is smaller than the sum of its proper divisors (1098593673840).

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

400080404880 is a wasteful number, since it uses less digits than its factorization.

400080404880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12959 (or 12950 counting only the distinct ones).

The product of its (nonzero) digits is 32768, while the sum is 36.

Adding to 400080404880 its reverse (88404080004), we get a palindrome (488484484884).

The spelling of 400080404880 in words is "four hundred billion, eighty million, four hundred four thousand, eight hundred eighty".