400403484680 has 64 divisors (see below), whose sum is σ = 943081868160. Its totient is φ = 152708295168.

The previous prime is 400403484667. The next prime is 400403484763. The reversal of 400403484680 is 86484304004.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 407282 + ... + 983201.

It is an arithmetic number, because the mean of its divisors is an integer number (14735654190).

Almost surely, 2^400403484680 is an apocalyptic number.

400403484680 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

400403484680 is an abundant number, since it is smaller than the sum of its proper divisors (542678383480).

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

400403484680 is a wasteful number, since it uses less digits than its factorization.

400403484680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1390830 (or 1390826 counting only the distinct ones).

The product of its (nonzero) digits is 294912, while the sum is 41.

Adding to 400403484680 its reverse (86484304004), we get a palindrome (486887788684).

The spelling of 400403484680 in words is "four hundred billion, four hundred three million, four hundred eighty-four thousand, six hundred eighty".