40256798000 has 40 divisors (see below), whose sum is σ = 97340942400. Its totient is φ = 16102718400.

The previous prime is 40256797967. The next prime is 40256798003. The reversal of 40256798000 is 89765204.

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

It is a hoax number, since the sum of its digits (41) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (40256798003) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 10062200 + ... + 10066199.

It is an arithmetic number, because the mean of its divisors is an integer number (2433523560).

Almost surely, 2^40256798000 is an apocalyptic number.

40256798000 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40256798000 is an abundant number, since it is smaller than the sum of its proper divisors (57084144400).

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

40256798000 is a wasteful number, since it uses less digits than its factorization.

40256798000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20128422 (or 20128406 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 41.

The spelling of 40256798000 in words is "forty billion, two hundred fifty-six million, seven hundred ninety-eight thousand".