32140440431 has 32 divisors (see below), whose sum is σ = 38399256576. Its totient is φ = 26559360000.

The previous prime is 32140440403. The next prime is 32140440439. The reversal of 32140440431 is 13404404123.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-32140440431 is a prime.

It is a super-2 number, since 2×32140440431² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 32140440431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32140440439) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3026531 + ... + 3037131.

It is an arithmetic number, because the mean of its divisors is an integer number (1199976768).

Almost surely, 2^32140440431 is an apocalyptic number.

32140440431 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

32140440431 is a deficient number, since it is larger than the sum of its proper divisors (6258816145).

32140440431 is a wasteful number, since it uses less digits than its factorization.

32140440431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11183.

The product of its (nonzero) digits is 4608, while the sum is 26.

Adding to 32140440431 its reverse (13404404123), we get a palindrome (45544844554).

The spelling of 32140440431 in words is "thirty-two billion, one hundred forty million, four hundred forty thousand, four hundred thirty-one".