29809428 has 24 divisors (see below), whose sum is σ = 75878880. Its totient is φ = 9033120.

The previous prime is 29809427. The next prime is 29809453. The reversal of 29809428 is 82490892.

It is a self number, because there is not a number n which added to its sum of digits gives 29809428.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29809427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 112783 + ... + 113046.

It is an arithmetic number, because the mean of its divisors is an integer number (3161620).

Almost surely, 2^29809428 is an apocalyptic number.

It is an amenable number.

29809428 is an abundant number, since it is smaller than the sum of its proper divisors (46069452).

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

29809428 is a wasteful number, since it uses less digits than its factorization.

29809428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 225847 (or 225845 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 42.

The square root of 29809428 is about 5459.8010952781. The cubic root of 29809428 is about 310.0639063531.

The spelling of 29809428 in words is "twenty-nine million, eight hundred nine thousand, four hundred twenty-eight".