40004040399 has 8 divisors (see below), whose sum is σ = 56476292400. Its totient is φ = 25100574336.

The previous prime is 40004040389. The next prime is 40004040413. The reversal of 40004040399 is 99304040004.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 40004040399 - 2⁴ = 40004040383 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40004040319) 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, 392196424 + ... + 392196525.

It is an arithmetic number, because the mean of its divisors is an integer number (7059536550).

Almost surely, 2^40004040399 is an apocalyptic number.

40004040399 is a deficient number, since it is larger than the sum of its proper divisors (16472252001).

40004040399 is a wasteful number, since it uses less digits than its factorization.

40004040399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 784392969.

The product of its (nonzero) digits is 15552, while the sum is 33.

The spelling of 40004040399 in words is "forty billion, four million, forty thousand, three hundred ninety-nine".