28148124 has 48 divisors (see below), whose sum is σ = 71801856. Its totient is φ = 8544000.

The previous prime is 28148117. The next prime is 28148129. The reversal of 28148124 is 42184182.

It is a junction number, because it is equal to n+sod(n) for n = 28148091 and 28148100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28148129) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4099 + ... + 8549.

It is an arithmetic number, because the mean of its divisors is an integer number (1495872).

Almost surely, 2^28148124 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 28148124, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35900928).

28148124 is an abundant number, since it is smaller than the sum of its proper divisors (43653732).

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

28148124 is a wasteful number, since it uses less digits than its factorization.

28148124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4506 (or 4504 counting only the distinct ones).

The product of its digits is 4096, while the sum is 30.

The square root of 28148124 is about 5305.4805625881. The cubic root of 28148124 is about 304.1934220371.

The spelling of 28148124 in words is "twenty-eight million, one hundred forty-eight thousand, one hundred twenty-four".