400042195808 has 24 divisors (see below), whose sum is σ = 791022314880. Its totient is φ = 199147639680.

The previous prime is 400042195793. The next prime is 400042195811. The reversal of 400042195808 is 808591240004.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27288128 + ... + 27302783.

It is an arithmetic number, because the mean of its divisors is an integer number (32959263120).

Almost surely, 2^400042195808 is an apocalyptic number.

It is an amenable number.

400042195808 is a deficient number, since it is larger than the sum of its proper divisors (390980119072).

400042195808 is a wasteful number, since it uses less digits than its factorization.

400042195808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54591150 (or 54591142 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 41.

The spelling of 400042195808 in words is "four hundred billion, forty-two million, one hundred ninety-five thousand, eight hundred eight".