40044000403 has 16 divisors (see below), whose sum is σ = 44425272672. Its totient is φ = 35786880000.

The previous prime is 40044000391. The next prime is 40044000413. The reversal of 40044000403 is 30400044004.

It is a cyclic number.

It is not a de Polignac number, because 40044000403 - 2²⁹ = 39507129491 is a prime.

It is not an unprimeable number, because it can be changed into a prime (40044000413) 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, 1259875 + ... + 1291267.

It is an arithmetic number, because the mean of its divisors is an integer number (2776579542).

Almost surely, 2^40044000403 is an apocalyptic number.

40044000403 is a deficient number, since it is larger than the sum of its proper divisors (4381272269).

40044000403 is a wasteful number, since it uses less digits than its factorization.

40044000403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33366.

The product of its (nonzero) digits is 768, while the sum is 19.

Adding to 40044000403 its reverse (30400044004), we get a palindrome (70444044407).

The spelling of 40044000403 in words is "forty billion, forty-four million, four hundred three", and thus it is an aban number.