40431204431443 has 8 divisors (see below), whose sum is σ = 48216094725888. Its totient is φ = 33148565123784.

The previous prime is 40431204431441. The next prime is 40431204431447. The reversal of 40431204431443 is 34413440213404.

It is a happy number.

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 40431204431443 - 2¹ = 40431204431441 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40431204431441) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 125562746521 + ... + 125562746842.

It is an arithmetic number, because the mean of its divisors is an integer number (6027011840736).

Almost surely, 2^{40431204431443} is an apocalyptic number.

40431204431443 is a deficient number, since it is larger than the sum of its proper divisors (7784890294445).

40431204431443 is a wasteful number, since it uses less digits than its factorization.

40431204431443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 251125493393.

The product of its (nonzero) digits is 221184, while the sum is 37.

Adding to 40431204431443 its reverse (34413440213404), we get a palindrome (74844644644847).

The spelling of 40431204431443 in words is "forty trillion, four hundred thirty-one billion, two hundred four million, four hundred thirty-one thousand, four hundred forty-three".