29009439 has 12 divisors (see below), whose sum is σ = 42205800. Its totient is φ = 19199664.

The previous prime is 29009423. The next prime is 29009479. The reversal of 29009439 is 93490092.

It is not a de Polignac number, because 29009439 - 2⁴ = 29009423 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29009479) 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, 10344 + ... + 12845.

It is an arithmetic number, because the mean of its divisors is an integer number (3517150).

Almost surely, 2^29009439 is an apocalyptic number.

29009439 is a deficient number, since it is larger than the sum of its proper divisors (13196361).

29009439 is a wasteful number, since it uses less digits than its factorization.

29009439 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23334 (or 23331 counting only the distinct ones).

The product of its (nonzero) digits is 17496, while the sum is 36.

The square root of 29009439 is about 5386.0411249822. The cubic root of 29009439 is about 307.2650118247.

The spelling of 29009439 in words is "twenty-nine million, nine thousand, four hundred thirty-nine".