40229323829 has 4 divisors (see below), whose sum is σ = 40358678880. Its totient is φ = 40099968780.

The previous prime is 40229323819. The next prime is 40229323843. The reversal of 40229323829 is 92832392204.

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.

It is a cyclic number.

It is not a de Polignac number, because 40229323829 - 2³² = 35934356533 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 40229323829.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40229323819) 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 3 ways as a sum of consecutive naturals, for example, 64677059 + ... + 64677680.

It is an arithmetic number, because the mean of its divisors is an integer number (10089669720).

Almost surely, 2^40229323829 is an apocalyptic number.

It is an amenable number.

40229323829 is a deficient number, since it is larger than the sum of its proper divisors (129355051).

40229323829 is a wasteful number, since it uses less digits than its factorization.

40229323829 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129355050.

The product of its (nonzero) digits is 373248, while the sum is 44.

The spelling of 40229323829 in words is "forty billion, two hundred twenty-nine million, three hundred twenty-three thousand, eight hundred twenty-nine".