40441330431 has 8 divisors (see below), whose sum is σ = 59913082160. Its totient is φ = 26960886936.

The previous prime is 40441330429. The next prime is 40441330439. The reversal of 40441330431 is 13403314404.

It is not a de Polignac number, because 40441330431 - 2¹ = 40441330429 is a prime.

It is a super-2 number, since 2×40441330431² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 1497827053 = 40441330431 / (4 + 0 + 4 + 4 + 1 + 3 + 3 + 0 + 4 + 3 + 1).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 40441330395 and 40441330404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40441330439) 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, 748913500 + ... + 748913553.

It is an arithmetic number, because the mean of its divisors is an integer number (7489135270).

Almost surely, 2^40441330431 is an apocalyptic number.

40441330431 is a deficient number, since it is larger than the sum of its proper divisors (19471751729).

40441330431 is a wasteful number, since it uses less digits than its factorization.

40441330431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1497827062 (or 1497827056 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

Adding to 40441330431 its reverse (13403314404), we get a palindrome (53844644835).

The spelling of 40441330431 in words is "forty billion, four hundred forty-one million, three hundred thirty thousand, four hundred thirty-one".