40344140023 has 8 divisors (see below), whose sum is σ = 44039681280. Its totient is φ = 36653247480.

The previous prime is 40344139999. The next prime is 40344140027. The reversal of 40344140023 is 32004144304.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40344140023 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 40344140023.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40344140027) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1144015 + ... + 1178752.

It is an arithmetic number, because the mean of its divisors is an integer number (5504960160).

Almost surely, 2^40344140023 is an apocalyptic number.

40344140023 is a deficient number, since it is larger than the sum of its proper divisors (3695541257).

40344140023 is a wasteful number, since it uses less digits than its factorization.

40344140023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2324357.

The product of its (nonzero) digits is 4608, while the sum is 25.

Adding to 40344140023 its reverse (32004144304), we get a palindrome (72348284327).

The spelling of 40344140023 in words is "forty billion, three hundred forty-four million, one hundred forty thousand, twenty-three".