32404323431 has 16 divisors (see below), whose sum is σ = 33660211200. Its totient is φ = 31174875648.

The previous prime is 32404323403. The next prime is 32404323449. The reversal of 32404323431 is 13432340423.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-32404323431 is a prime.

It is a super-2 number, since 2×32404323431² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 32404323394 and 32404323403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32404323131) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 737735 + ... + 780423.

It is an arithmetic number, because the mean of its divisors is an integer number (2103763200).

Almost surely, 2^32404323431 is an apocalyptic number.

32404323431 is a deficient number, since it is larger than the sum of its proper divisors (1255887769).

32404323431 is a wasteful number, since it uses less digits than its factorization.

32404323431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42998.

The product of its (nonzero) digits is 20736, while the sum is 29.

Adding to 32404323431 its reverse (13432340423), we get a palindrome (45836663854).

The spelling of 32404323431 in words is "thirty-two billion, four hundred four million, three hundred twenty-three thousand, four hundred thirty-one".