29849939 has 12 divisors (see below), whose sum is σ = 34531344. Its totient is φ = 25275744.

The previous prime is 29849933. The next prime is 29849947. The reversal of 29849939 is 93994892.

It is a de Polignac number, because none of the positive numbers 2^k-29849939 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (29849933) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 172457 + ... + 172629.

It is an arithmetic number, because the mean of its divisors is an integer number (2877612).

Almost surely, 2^29849939 is an apocalyptic number.

29849939 is a deficient number, since it is larger than the sum of its proper divisors (4681405).

29849939 is an equidigital number, since it uses as much as digits as its factorization.

29849939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 494 (or 337 counting only the distinct ones).

The product of its digits is 1259712, while the sum is 53.

The square root of 29849939 is about 5463.5097693699. The cubic root of 29849939 is about 310.2043016789.

The spelling of 29849939 in words is "twenty-nine million, eight hundred forty-nine thousand, nine hundred thirty-nine".