28982556 has 48 divisors (see below), whose sum is σ = 75912480. Its totient is φ = 9561600.

The previous prime is 28982539. The next prime is 28982557. The reversal of 28982556 is 65528982.

28982556 is a `hidden beast` number, since 2 + 8 + 98 + 2 + 556 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28982557) 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, 9580 + ... + 12236.

It is an arithmetic number, because the mean of its divisors is an integer number (1581510).

Almost surely, 2^28982556 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 28982556, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37956240).

28982556 is an abundant number, since it is smaller than the sum of its proper divisors (46929924).

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

28982556 is a wasteful number, since it uses less digits than its factorization.

28982556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2771 (or 2763 counting only the distinct ones).

The product of its digits is 345600, while the sum is 45.

The square root of 28982556 is about 5383.5449287621. The cubic root of 28982556 is about 307.1700684949.

The spelling of 28982556 in words is "twenty-eight million, nine hundred eighty-two thousand, five hundred fifty-six".