28929424 has 10 divisors (see below), whose sum is σ = 56050790. Its totient is φ = 14464704.

The previous prime is 28929413. The next prime is 28929437. The reversal of 28929424 is 42492982.

It can be written as a sum of positive squares in only one way, i.e., 24800400 + 4129024 = 4980^2 + 2032^2 .

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 904029 + ... + 904060.

It is an arithmetic number, because the mean of its divisors is an integer number (5605079).

Almost surely, 2^28929424 is an apocalyptic number.

It is an amenable number.

28929424 is a deficient number, since it is larger than the sum of its proper divisors (27121366).

28929424 is a wasteful number, since it uses less digits than its factorization.

28929424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1808097 (or 1808091 counting only the distinct ones).

The product of its digits is 82944, while the sum is 40.

The square root of 28929424 is about 5378.6079983579. The cubic root of 28929424 is about 306.9822481221.

The spelling of 28929424 in words is "twenty-eight million, nine hundred twenty-nine thousand, four hundred twenty-four".