28356248 has 8 divisors (see below), whose sum is σ = 53167980. Its totient is φ = 14178120.

The previous prime is 28356199. The next prime is 28356269. The reversal of 28356248 is 84265382.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1772258 + ... + 1772273.

Almost surely, 2^28356248 is an apocalyptic number.

It is an amenable number.

28356248 is a deficient number, since it is larger than the sum of its proper divisors (24811732).

28356248 is a wasteful number, since it uses less digits than its factorization.

28356248 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3544537 (or 3544533 counting only the distinct ones).

The product of its digits is 92160, while the sum is 38.

The square root of 28356248 is about 5325.0584973313. The cubic root of 28356248 is about 304.9413055558.

The spelling of 28356248 in words is "twenty-eight million, three hundred fifty-six thousand, two hundred forty-eight".