28247452 has 24 divisors (see below), whose sum is σ = 52214400. Its totient is φ = 13334256.

The previous prime is 28247449. The next prime is 28247501. The reversal of 28247452 is 25474282.

It is a congruent number.

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 in 7 ways as a sum of consecutive naturals, for example, 33249 + ... + 34087.

It is an arithmetic number, because the mean of its divisors is an integer number (2175600).

Almost surely, 2^28247452 is an apocalyptic number.

It is an amenable number.

28247452 is a deficient number, since it is larger than the sum of its proper divisors (23966948).

28247452 is a wasteful number, since it uses less digits than its factorization.

28247452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1305 (or 1303 counting only the distinct ones).

The product of its digits is 35840, while the sum is 34.

The square root of 28247452 is about 5314.8332052850. The cubic root of 28247452 is about 304.5508106067.

The spelling of 28247452 in words is "twenty-eight million, two hundred forty-seven thousand, four hundred fifty-two".