28503348 has 48 divisors (see below), whose sum is σ = 70578816. Its totient is φ = 8933760.

The previous prime is 28503331. The next prime is 28503383. The reversal of 28503348 is 84330582.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15990 + ... + 17682.

It is an arithmetic number, because the mean of its divisors is an integer number (1470392).

Almost surely, 2^28503348 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 28503348, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35289408).

28503348 is an abundant number, since it is smaller than the sum of its proper divisors (42075468).

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

28503348 is a wasteful number, since it uses less digits than its factorization.

28503348 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1784 (or 1782 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 33.

The square root of 28503348 is about 5338.8526857369. The cubic root of 28503348 is about 305.4676977497.

The spelling of 28503348 in words is "twenty-eight million, five hundred three thousand, three hundred forty-eight".