40004144433 has 16 divisors (see below), whose sum is σ = 64653163200. Its totient is φ = 24244935840.

The previous prime is 40004144429. The next prime is 40004144447. The reversal of 40004144433 is 33444140004.

It is not a de Polignac number, because 40004144433 - 2² = 40004144429 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 40004144397 and 40004144406.

It is not an unprimeable number, because it can be changed into a prime (40004144413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 67346748 + ... + 67347341.

It is an arithmetic number, because the mean of its divisors is an integer number (4040822700).

Almost surely, 2^40004144433 is an apocalyptic number.

It is an amenable number.

40004144433 is a deficient number, since it is larger than the sum of its proper divisors (24649018767).

40004144433 is a wasteful number, since it uses less digits than its factorization.

40004144433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134694109 (or 134694103 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 27.

Adding to 40004144433 its reverse (33444140004), we get a palindrome (73448284437).

The spelling of 40004144433 in words is "forty billion, four million, one hundred forty-four thousand, four hundred thirty-three".