29988289 has 16 divisors (see below), whose sum is σ = 33652800. Its totient is φ = 26555904.

The previous prime is 29988263. The next prime is 29988311. The reversal of 29988289 is 98288992.

It is not a de Polignac number, because 29988289 - 2⁹ = 29987777 is a prime.

It is not an unprimeable number, because it can be changed into a prime (29988989) 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, 73117 + ... + 73525.

It is an arithmetic number, because the mean of its divisors is an integer number (2103300).

Almost surely, 2^29988289 is an apocalyptic number.

It is an amenable number.

29988289 is a deficient number, since it is larger than the sum of its proper divisors (3664511).

29988289 is a wasteful number, since it uses less digits than its factorization.

29988289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 672.

The product of its digits is 1492992, while the sum is 55.

The square root of 29988289 is about 5476.1564075545. The cubic root of 29988289 is about 310.6828133333.

It can be divided in two parts, 299 and 88289, that added together give a palindrome (88588).

The spelling of 29988289 in words is "twenty-nine million, nine hundred eighty-eight thousand, two hundred eighty-nine".