40429036369 has 4 divisors (see below), whose sum is σ = 40429479744. Its totient is φ = 40428592996.

The previous prime is 40429036331. The next prime is 40429036391. The reversal of 40429036369 is 96363092404.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40429036369 is a prime.

It is a super-2 number, since 2×40429036369² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40429036069) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29197 + ... + 285850.

It is an arithmetic number, because the mean of its divisors is an integer number (10107369936).

Almost surely, 2^40429036369 is an apocalyptic number.

It is an amenable number.

40429036369 is a deficient number, since it is larger than the sum of its proper divisors (443375).

40429036369 is a wasteful number, since it uses less digits than its factorization.

40429036369 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 443374.

The product of its (nonzero) digits is 839808, while the sum is 46.

The spelling of 40429036369 in words is "forty billion, four hundred twenty-nine million, thirty-six thousand, three hundred sixty-nine".