400040030268 has 18 divisors (see below), whose sum is σ = 1011212298824. Its totient is φ = 133346676744.

The previous prime is 400040030249. The next prime is 400040030297. The reversal of 400040030268 is 862030040004.

It is a tau number, because it is divible by the number of its divisors (18).

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5556111496 + ... + 5556111567.

Almost surely, 2^400040030268 is an apocalyptic number.

It is an amenable number.

400040030268 is an abundant number, since it is smaller than the sum of its proper divisors (611172268556).

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

400040030268 is a wasteful number, since it uses less digits than its factorization.

400040030268 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11112223073 (or 11112223068 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

The spelling of 400040030268 in words is "four hundred billion, forty million, thirty thousand, two hundred sixty-eight".