29808039 has 16 divisors (see below), whose sum is σ = 40924800. Its totient is φ = 19290336.

The previous prime is 29808013. The next prime is 29808059. The reversal of 29808039 is 93080892.

It is not a de Polignac number, because 29808039 - 2⁹ = 29807527 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 29807988 and 29808006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29808059) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13677 + ... + 15705.

It is an arithmetic number, because the mean of its divisors is an integer number (2557800).

Almost surely, 2^29808039 is an apocalyptic number.

29808039 is a deficient number, since it is larger than the sum of its proper divisors (11116761).

29808039 is a wasteful number, since it uses less digits than its factorization.

29808039 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2174.

The product of its (nonzero) digits is 31104, while the sum is 39.

The square root of 29808039 is about 5459.6738913602. The cubic root of 29808039 is about 310.0590903661.

The spelling of 29808039 in words is "twenty-nine million, eight hundred eight thousand, thirty-nine".