28514224 has 10 divisors (see below), whose sum is σ = 55246340. Its totient is φ = 14257104.

The previous prime is 28514209. The next prime is 28514249. The reversal of 28514224 is 42241582.

It is a junction number, because it is equal to n+sod(n) for n = 28514192 and 28514201.

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, 891054 + ... + 891085.

It is an arithmetic number, because the mean of its divisors is an integer number (5524634).

Almost surely, 2^28514224 is an apocalyptic number.

It is an amenable number.

28514224 is a deficient number, since it is larger than the sum of its proper divisors (26732116).

28514224 is a wasteful number, since it uses less digits than its factorization.

28514224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1782147 (or 1782141 counting only the distinct ones).

The product of its digits is 5120, while the sum is 28.

The square root of 28514224 is about 5339.8711594944. The cubic root of 28514224 is about 305.5065451653.

The spelling of 28514224 in words is "twenty-eight million, five hundred fourteen thousand, two hundred twenty-four".