29205052438 has 16 divisors (see below), whose sum is σ = 44832457296. Its totient is φ = 14260992480.

The previous prime is 29205052433. The next prime is 29205052441. The reversal of 29205052438 is 83425050292.

It is a self number, because there is not a number n which added to its sum of digits gives 29205052438.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29205052433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 770368 + ... + 807388.

It is an arithmetic number, because the mean of its divisors is an integer number (2802028581).

Almost surely, 2^29205052438 is an apocalyptic number.

29205052438 is a deficient number, since it is larger than the sum of its proper divisors (15627404858).

29205052438 is a wasteful number, since it uses less digits than its factorization.

29205052438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46239.

The product of its (nonzero) digits is 172800, while the sum is 40.

The spelling of 29205052438 in words is "twenty-nine billion, two hundred five million, fifty-two thousand, four hundred thirty-eight".