400404804404 has 48 divisors (see below), whose sum is σ = 772532280576. Its totient is φ = 180070704000.

The previous prime is 400404804383. The next prime is 400404804439. The reversal of 400404804404 is 404408404004.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6292154 + ... + 6355470.

It is an arithmetic number, because the mean of its divisors is an integer number (16094422512).

Almost surely, 2^400404804404 is an apocalyptic number.

400404804404 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

400404804404 is a deficient number, since it is larger than the sum of its proper divisors (372127476172).

400404804404 is a wasteful number, since it uses less digits than its factorization.

400404804404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64856 (or 64854 counting only the distinct ones).

The product of its (nonzero) digits is 32768, while the sum is 32.

The spelling of 400404804404 in words is "four hundred billion, four hundred four million, eight hundred four thousand, four hundred four".