40000004439 has 4 divisors (see below), whose sum is σ = 53333339256. Its totient is φ = 26666669624.

The previous prime is 40000004411. The next prime is 40000004461. The reversal of 40000004439 is 93440000004.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 40000004439 - 2⁷ = 40000004311 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40000004839) 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 3 ways as a sum of consecutive naturals, for example, 6666667404 + ... + 6666667409.

It is an arithmetic number, because the mean of its divisors is an integer number (13333334814).

Almost surely, 2^40000004439 is an apocalyptic number.

40000004439 is a deficient number, since it is larger than the sum of its proper divisors (13333334817).

40000004439 is a wasteful number, since it uses less digits than its factorization.

40000004439 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13333334816.

The product of its (nonzero) digits is 1728, while the sum is 24.

The spelling of 40000004439 in words is "forty billion, four thousand, four hundred thirty-nine".