29945339 has 4 divisors (see below), whose sum is σ = 30210456. Its totient is φ = 29680224.

The previous prime is 29945299. The next prime is 29945359. The reversal of 29945339 is 93354992.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 29945339 - 2¹² = 29941243 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 29945339.

It is not an unprimeable number, because it can be changed into a prime (29945359) 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 3 ways as a sum of consecutive naturals, for example, 132389 + ... + 132614.

It is an arithmetic number, because the mean of its divisors is an integer number (7552614).

Almost surely, 2^29945339 is an apocalyptic number.

29945339 is a deficient number, since it is larger than the sum of its proper divisors (265117).

29945339 is a wasteful number, since it uses less digits than its factorization.

29945339 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 265116.

The product of its digits is 262440, while the sum is 44.

The square root of 29945339 is about 5472.2334562772. The cubic root of 29945339 is about 310.5344198236.

The spelling of 29945339 in words is "twenty-nine million, nine hundred forty-five thousand, three hundred thirty-nine".