29889216 has 168 divisors, whose sum is σ = 102504240. Its totient is φ = 8515584.

The previous prime is 29889173. The next prime is 29889221. The reversal of 29889216 is 61298892.

It is a tau number, because it is divible by the number of its divisors (168).

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 84496 + ... + 84848.

Almost surely, 2^29889216 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 29889216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (51252120).

29889216 is an abundant number, since it is smaller than the sum of its proper divisors (72615024).

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

29889216 is a wasteful number, since it uses less digits than its factorization.

29889216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 388 (or 365 counting only the distinct ones).

The product of its digits is 124416, while the sum is 45.

The square root of 29889216 is about 5467.1030720117. The cubic root of 29889216 is about 310.3402992136.

The spelling of 29889216 in words is "twenty-nine million, eight hundred eighty-nine thousand, two hundred sixteen".