28266824 has 16 divisors (see below), whose sum is σ = 54233520. Its totient is φ = 13804560.

The previous prime is 28266817. The next prime is 28266829. The reversal of 28266824 is 42866282.

It is not an unprimeable number, because it can be changed into a prime (28266829) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40742 + ... + 41429.

It is an arithmetic number, because the mean of its divisors is an integer number (3389595).

Almost surely, 2^28266824 is an apocalyptic number.

It is an amenable number.

28266824 is a deficient number, since it is larger than the sum of its proper divisors (25966696).

28266824 is a wasteful number, since it uses less digits than its factorization.

28266824 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82220 (or 82216 counting only the distinct ones).

The product of its digits is 73728, while the sum is 38.

The square root of 28266824 is about 5316.6553395909. The cubic root of 28266824 is about 304.6204146444.

The spelling of 28266824 in words is "twenty-eight million, two hundred sixty-six thousand, eight hundred twenty-four".