40204315423 has 4 divisors (see below), whose sum is σ = 40219280640. Its totient is φ = 40189350208.

The previous prime is 40204315391. The next prime is 40204315433. The reversal of 40204315423 is 32451340204.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 40204315423 - 2⁵ = 40204315391 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 40204315391 and 40204315400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40204315433) 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, 7478578 + ... + 7483951.

It is an arithmetic number, because the mean of its divisors is an integer number (10054820160).

Almost surely, 2^40204315423 is an apocalyptic number.

40204315423 is a deficient number, since it is larger than the sum of its proper divisors (14965217).

40204315423 is a wasteful number, since it uses less digits than its factorization.

40204315423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14965216.

The product of its (nonzero) digits is 11520, while the sum is 28.

Adding to 40204315423 its reverse (32451340204), we get a palindrome (72655655627).

The spelling of 40204315423 in words is "forty billion, two hundred four million, three hundred fifteen thousand, four hundred twenty-three".