40245430423 has 6 divisors (see below), whose sum is σ = 44236712912. Its totient is φ = 36586754820.

The previous prime is 40245430411. The next prime is 40245430439. The reversal of 40245430423 is 32403454204.

It is a de Polignac number, because none of the positive numbers 2^k-40245430423 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40245430123) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 166303311 + ... + 166303552.

Almost surely, 2^40245430423 is an apocalyptic number.

40245430423 is a deficient number, since it is larger than the sum of its proper divisors (3991282489).

40245430423 is a wasteful number, since it uses less digits than its factorization.

40245430423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 332606885 (or 332606874 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 31.

Adding to 40245430423 its reverse (32403454204), we get a palindrome (72648884627).

The spelling of 40245430423 in words is "forty billion, two hundred forty-five million, four hundred thirty thousand, four hundred twenty-three".