28364148 has 48 divisors (see below), whose sum is σ = 73993920. Its totient is φ = 9396000.

The previous prime is 28364113. The next prime is 28364153. The reversal of 28364148 is 84146382.

28364148 is a `hidden beast` number, since 2 + 8 + 3 + 641 + 4 + 8 = 666.

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 (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18823 + ... + 20273.

It is an arithmetic number, because the mean of its divisors is an integer number (1541540).

Almost surely, 2^28364148 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 28364148, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36996960).

28364148 is an abundant number, since it is smaller than the sum of its proper divisors (45629772).

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

28364148 is a wasteful number, since it uses less digits than its factorization.

28364148 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1645 (or 1637 counting only the distinct ones).

The product of its digits is 36864, while the sum is 36.

The square root of 28364148 is about 5325.8002215630. The cubic root of 28364148 is about 304.9696216272.

The spelling of 28364148 in words is "twenty-eight million, three hundred sixty-four thousand, one hundred forty-eight".