40444323133 has 8 divisors (see below), whose sum is σ = 40922402040. Its totient is φ = 39966769920.

The previous prime is 40444323131. The next prime is 40444323181. The reversal of 40444323133 is 33132344404.

It can be written as a sum of positive squares in 4 ways, for example, as 995213209 + 39449109924 = 31547^2 + 198618^2 .

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 40444323133 - 2¹ = 40444323131 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 40444323095 and 40444323104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40444323131) 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, 24441 + ... + 285457.

It is an arithmetic number, because the mean of its divisors is an integer number (5115300255).

Almost surely, 2^40444323133 is an apocalyptic number.

It is an amenable number.

40444323133 is a deficient number, since it is larger than the sum of its proper divisors (478078907).

40444323133 is a wasteful number, since it uses less digits than its factorization.

40444323133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 262847.

The product of its (nonzero) digits is 41472, while the sum is 31.

Adding to 40444323133 its reverse (33132344404), we get a palindrome (73576667537).

The spelling of 40444323133 in words is "forty billion, four hundred forty-four million, three hundred twenty-three thousand, one hundred thirty-three".