10440432431 has 8 divisors (see below), whose sum is σ = 12265683024. Its totient is φ = 8761201920.

The previous prime is 10440432421. The next prime is 10440432439. The reversal of 10440432431 is 13423404401.

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

It is a cyclic number.

It is not a de Polignac number, because 10440432431 - 2¹⁸ = 10440170287 is a prime.

It is a super-2 number, since 2×10440432431² (a number of 21 digits) contains 22 as substring.

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 10440432431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10440432439) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36504866 + ... + 36505151.

It is an arithmetic number, because the mean of its divisors is an integer number (1533210378).

Almost surely, 2^10440432431 is an apocalyptic number.

10440432431 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

10440432431 is a deficient number, since it is larger than the sum of its proper divisors (1825250593).

10440432431 is a wasteful number, since it uses less digits than its factorization.

10440432431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73010041.

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

Adding to 10440432431 its reverse (13423404401), we get a palindrome (23863836832).

The spelling of 10440432431 in words is "ten billion, four hundred forty million, four hundred thirty-two thousand, four hundred thirty-one".