400880448880 has 40 divisors (see below), whose sum is σ = 932776012800. Its totient is φ = 160226765568.

The previous prime is 400880448877. The next prime is 400880448893. The reversal of 400880448880 is 88844088004.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1856635 + ... + 2061274.

It is an arithmetic number, because the mean of its divisors is an integer number (23319400320).

Almost surely, 2^400880448880 is an apocalyptic number.

400880448880 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

400880448880 is an abundant number, since it is smaller than the sum of its proper divisors (531895563920).

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

400880448880 is a wasteful number, since it uses less digits than its factorization.

400880448880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3919201 (or 3919195 counting only the distinct ones).

The product of its (nonzero) digits is 2097152, while the sum is 52.

The spelling of 400880448880 in words is "four hundred billion, eight hundred eighty million, four hundred forty-eight thousand, eight hundred eighty".