40000424020399 has 16 divisors (see below), whose sum is σ = 42688973546208. Its totient is φ = 37350244298752.

The previous prime is 40000424020391. The next prime is 40000424020429. The reversal of 40000424020399 is 99302042400004.

It is a cyclic number.

It is not a de Polignac number, because 40000424020399 - 2³ = 40000424020391 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40000424020391) 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 15 ways as a sum of consecutive naturals, for example, 15735637 + ... + 18100030.

It is an arithmetic number, because the mean of its divisors is an integer number (2668060846638).

Almost surely, 2^{40000424020399} is an apocalyptic number.

40000424020399 is a deficient number, since it is larger than the sum of its proper divisors (2688549525809).

40000424020399 is a wasteful number, since it uses less digits than its factorization.

40000424020399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33836234.

The product of its (nonzero) digits is 62208, while the sum is 37.

The spelling of 40000424020399 in words is "forty trillion, four hundred twenty-four million, twenty thousand, three hundred ninety-nine".