29065728 has 80 divisors (see below), whose sum is σ = 78566400. Its totient is φ = 9547776.

The previous prime is 29065723. The next prime is 29065769. The reversal of 29065728 is 82756092.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (29065723) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 194998 + ... + 195146.

It is an arithmetic number, because the mean of its divisors is an integer number (982080).

Almost surely, 2^29065728 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 29065728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39283200).

29065728 is an abundant number, since it is smaller than the sum of its proper divisors (49500672).

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

29065728 is a wasteful number, since it uses less digits than its factorization.

29065728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 297 (or 281 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 39.

The square root of 29065728 is about 5391.2640447301. The cubic root of 29065728 is about 307.4636192004.

The spelling of 29065728 in words is "twenty-nine million, sixty-five thousand, seven hundred twenty-eight".