40240310243 has 8 divisors (see below), whose sum is σ = 46636657920. Its totient is φ = 34005895560.

The previous prime is 40240310167. The next prime is 40240310269. The reversal of 40240310243 is 34201304204.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 40240310243 - 2¹⁸ = 40240048099 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40240310293) 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 7 ways as a sum of consecutive naturals, for example, 40482713 + ... + 40483706.

It is an arithmetic number, because the mean of its divisors is an integer number (5829582240).

Almost surely, 2^40240310243 is an apocalyptic number.

40240310243 is a deficient number, since it is larger than the sum of its proper divisors (6396347677).

40240310243 is an equidigital number, since it uses as much as digits as its factorization.

40240310243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80966497.

The product of its (nonzero) digits is 2304, while the sum is 23.

Adding to 40240310243 its reverse (34201304204), we get a palindrome (74441614447).

The spelling of 40240310243 in words is "forty billion, two hundred forty million, three hundred ten thousand, two hundred forty-three".