28356548 has 48 divisors (see below), whose sum is σ = 56972160. Its totient is φ = 12230400.

The previous prime is 28356547. The next prime is 28356551. The reversal of 28356548 is 84565382.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28356547) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 90440 + ... + 90752.

It is an arithmetic number, because the mean of its divisors is an integer number (1186920).

Almost surely, 2^28356548 is an apocalyptic number.

It is an amenable number.

28356548 is an abundant number, since it is smaller than the sum of its proper divisors (28615612).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28356548 is a wasteful number, since it uses less digits than its factorization.

28356548 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 428 (or 426 counting only the distinct ones).

The product of its digits is 230400, while the sum is 41.

The square root of 28356548 is about 5325.0866659614. The cubic root of 28356548 is about 304.9423809457.

The spelling of 28356548 in words is "twenty-eight million, three hundred fifty-six thousand, five hundred forty-eight".