40444042413 has 8 divisors (see below), whose sum is σ = 53928612000. Its totient is φ = 26961083888.

The previous prime is 40444042411. The next prime is 40444042433. The reversal of 40444042413 is 31424044404.

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 40444042413 - 2¹ = 40444042411 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40444042411) 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, 342918 + ... + 445511.

It is an arithmetic number, because the mean of its divisors is an integer number (6741076500).

Almost surely, 2^40444042413 is an apocalyptic number.

It is an amenable number.

40444042413 is a deficient number, since it is larger than the sum of its proper divisors (13484569587).

40444042413 is a wasteful number, since it uses less digits than its factorization.

40444042413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 805531.

The product of its (nonzero) digits is 24576, while the sum is 30.

Adding to 40444042413 its reverse (31424044404), we get a palindrome (71868086817).

The spelling of 40444042413 in words is "forty billion, four hundred forty-four million, forty-two thousand, four hundred thirteen".