28813148 has 36 divisors (see below), whose sum is σ = 62410320. Its totient is φ = 11396736.

The previous prime is 28813133. The next prime is 28813157. The reversal of 28813148 is 84131882.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1688 + ... + 7776.

It is an arithmetic number, because the mean of its divisors is an integer number (1733620).

Almost surely, 2^28813148 is an apocalyptic number.

28813148 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28813148, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31205160).

28813148 is an abundant number, since it is smaller than the sum of its proper divisors (33597172).

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

28813148 is a wasteful number, since it uses less digits than its factorization.

28813148 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6126 (or 6111 counting only the distinct ones).

The product of its digits is 12288, while the sum is 35.

The square root of 28813148 is about 5367.7879987943. The cubic root of 28813148 is about 306.5704113999.

The spelling of 28813148 in words is "twenty-eight million, eight hundred thirteen thousand, one hundred forty-eight".