40534044309 has 12 divisors (see below), whose sum is σ = 63871827552. Its totient is φ = 24566087400.

The previous prime is 40534044289. The next prime is 40534044361. The reversal of 40534044309 is 90344043504.

It is a happy number.

40534044309 is a `hidden beast` number, since 4 + 0 + 5 + 340 + 4 + 4 + 309 = 666.

It is not a de Polignac number, because 40534044309 - 2¹¹ = 40534042261 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40534045309) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 204717297 + ... + 204717494.

It is an arithmetic number, because the mean of its divisors is an integer number (5322652296).

Almost surely, 2^40534044309 is an apocalyptic number.

It is an amenable number.

40534044309 is a deficient number, since it is larger than the sum of its proper divisors (23337783243).

40534044309 is a wasteful number, since it uses less digits than its factorization.

40534044309 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 409434808 (or 409434805 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 36.

The spelling of 40534044309 in words is "forty billion, five hundred thirty-four million, forty-four thousand, three hundred nine".