400488808880 has 40 divisors (see below), whose sum is σ = 938244417264. Its totient is φ = 158972652800.

The previous prime is 400488808877. The next prime is 400488808963. The reversal of 400488808880 is 88808884004.

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

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, 19096811 + ... + 19117770.

Almost surely, 2^400488808880 is an apocalyptic number.

400488808880 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

400488808880 is an abundant number, since it is smaller than the sum of its proper divisors (537755608384).

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

400488808880 is a wasteful number, since it uses less digits than its factorization.

400488808880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38214725 (or 38214719 counting only the distinct ones).

The product of its (nonzero) digits is 4194304, while the sum is 56.

The spelling of 400488808880 in words is "four hundred billion, four hundred eighty-eight million, eight hundred eight thousand, eight hundred eighty".