29045728 has 24 divisors (see below), whose sum is σ = 57492288. Its totient is φ = 14444544.

The previous prime is 29045719. The next prime is 29045747. The reversal of 29045728 is 82754092.

It is a Smith number, since the sum of its digits (37) coincides with the sum of the digits of its prime factors.

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, 3825 + ... + 8527.

It is an arithmetic number, because the mean of its divisors is an integer number (2395512).

Almost surely, 2^29045728 is an apocalyptic number.

It is an amenable number.

29045728 is a deficient number, since it is larger than the sum of its proper divisors (28446560).

29045728 is a wasteful number, since it uses less digits than its factorization.

29045728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4906 (or 4898 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 37.

The square root of 29045728 is about 5389.4088729656. The cubic root of 29045728 is about 307.3930815630.

The spelling of 29045728 in words is "twenty-nine million, forty-five thousand, seven hundred twenty-eight".