29925728 has 24 divisors (see below), whose sum is σ = 67333392. Its totient is φ = 12825216.

The previous prime is 29925697. The next prime is 29925739. The reversal of 29925728 is 82752992.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 66575 + ... + 67022.

It is an arithmetic number, because the mean of its divisors is an integer number (2805558).

Almost surely, 2^29925728 is an apocalyptic number.

29925728 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

29925728 is an abundant number, since it is smaller than the sum of its proper divisors (37407664).

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

29925728 is a wasteful number, since it uses less digits than its factorization.

29925728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133614 (or 133606 counting only the distinct ones).

The product of its digits is 181440, while the sum is 44.

The square root of 29925728 is about 5470.4412984694. The cubic root of 29925728 is about 310.4666160562.

The spelling of 29925728 in words is "twenty-nine million, nine hundred twenty-five thousand, seven hundred twenty-eight".