28342548 has 72 divisors (see below), whose sum is σ = 80047968. Its totient is φ = 8716896.

The previous prime is 28342529. The next prime is 28342571. The reversal of 28342548 is 84524382.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11515 + ... + 13757.

Almost surely, 2^28342548 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28342548, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40023984).

28342548 is an abundant number, since it is smaller than the sum of its proper divisors (51705420).

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

28342548 is a wasteful number, since it uses less digits than its factorization.

28342548 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2275 (or 2261 counting only the distinct ones).

The product of its digits is 61440, while the sum is 36.

The square root of 28342548 is about 5323.7719710746. The cubic root of 28342548 is about 304.8921879990.

The spelling of 28342548 in words is "twenty-eight million, three hundred forty-two thousand, five hundred forty-eight".