29039668 has 24 divisors (see below), whose sum is σ = 58198784. Its totient is φ = 12420000.

The previous prime is 29039651. The next prime is 29039669. The reversal of 29039668 is 86693092.

It is a nialpdrome in base 12.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29039669) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20338 + ... + 21718.

Almost surely, 2^29039668 is an apocalyptic number.

29039668 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

29039668 is an abundant number, since it is smaller than the sum of its proper divisors (29159116).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

29039668 is a wasteful number, since it uses less digits than its factorization.

29039668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2143 (or 2141 counting only the distinct ones).

The product of its (nonzero) digits is 139968, while the sum is 43.

The square root of 29039668 is about 5388.8466298458. The cubic root of 29039668 is about 307.3717022671.

The spelling of 29039668 in words is "twenty-nine million, thirty-nine thousand, six hundred sixty-eight".