29880205 has 8 divisors (see below), whose sum is σ = 35948952. Its totient is φ = 23842368.

The previous prime is 29880173. The next prime is 29880209. The reversal of 29880205 is 50208892.

It can be written as a sum of positive squares in 4 ways, for example, as 12257001 + 17623204 = 3501^2 + 4198^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 29880205 - 2⁵ = 29880173 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 (29880209) 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, 5542 + ... + 9511.

It is an arithmetic number, because the mean of its divisors is an integer number (4493619).

Almost surely, 2^29880205 is an apocalyptic number.

It is an amenable number.

29880205 is a deficient number, since it is larger than the sum of its proper divisors (6068747).

29880205 is a wasteful number, since it uses less digits than its factorization.

29880205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15455.

The product of its (nonzero) digits is 11520, while the sum is 34.

The square root of 29880205 is about 5466.2788988488. The cubic root of 29880205 is about 310.3091089508.

The spelling of 29880205 in words is "twenty-nine million, eight hundred eighty thousand, two hundred five".