40247459323 has 4 divisors (see below), whose sum is σ = 40256276560. Its totient is φ = 40238642088.

The previous prime is 40247459297. The next prime is 40247459363. The reversal of 40247459323 is 32395474204.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40247459323 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 40247459323.

It is not an unprimeable number, because it can be changed into a prime (40247459363) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4401768 + ... + 4410901.

It is an arithmetic number, because the mean of its divisors is an integer number (10064069140).

Almost surely, 2^40247459323 is an apocalyptic number.

40247459323 is a deficient number, since it is larger than the sum of its proper divisors (8817237).

40247459323 is an equidigital number, since it uses as much as digits as its factorization.

40247459323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8817236.

The product of its (nonzero) digits is 725760, while the sum is 43.

The spelling of 40247459323 in words is "forty billion, two hundred forty-seven million, four hundred fifty-nine thousand, three hundred twenty-three".