40423211565840 has 480 divisors, whose sum is σ = 147706434849792. Its totient is φ = 10260774144000.

The previous prime is 40423211565829. The next prime is 40423211565889. The reversal of 40423211565840 is 4856511232404.

40423211565840 is a `hidden beast` number, since 4 + 0 + 4 + 2 + 3 + 2 + 1 + 1 + 565 + 84 + 0 = 666.

40423211565840 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 36211230 + ... + 37310850.

Almost surely, 2^{40423211565840} is an apocalyptic number.

40423211565840 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 40423211565840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (73853217424896).

40423211565840 is an abundant number, since it is smaller than the sum of its proper divisors (107283223283952).

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

40423211565840 is a wasteful number, since it uses less digits than its factorization.

40423211565840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1099741 (or 1099723 counting only the distinct ones).

The product of its (nonzero) digits is 921600, while the sum is 45.

The spelling of 40423211565840 in words is "forty trillion, four hundred twenty-three billion, two hundred eleven million, five hundred sixty-five thousand, eight hundred forty".