40391088000 has 256 divisors, whose sum is σ = 136431397440. Its totient is φ = 10567065600.

The previous prime is 40391087969. The next prime is 40391088007. The reversal of 40391088000 is 88019304.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40391088007) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 2536062 + ... + 2551938.

Almost surely, 2^40391088000 is an apocalyptic number.

40391088000 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40391088000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (68215698720).

40391088000 is an abundant number, since it is smaller than the sum of its proper divisors (96040309440).

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

40391088000 is a wasteful number, since it uses less digits than its factorization.

40391088000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15962 (or 15940 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 33.

The spelling of 40391088000 in words is "forty billion, three hundred ninety-one million, eighty-eight thousand".