28273482 has 64 divisors (see below), whose sum is σ = 70070400. Its totient is φ = 8398080.

The previous prime is 28273481. The next prime is 28273493. The reversal of 28273482 is 28437282.

It is not an unprimeable number, because it can be changed into a prime (28273481) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 16632 + ... + 18252.

It is an arithmetic number, because the mean of its divisors is an integer number (1094850).

Almost surely, 2^28273482 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28273482, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35035200).

28273482 is an abundant number, since it is smaller than the sum of its proper divisors (41796918).

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

28273482 is a wasteful number, since it uses less digits than its factorization.

28273482 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1668 (or 1662 counting only the distinct ones).

The product of its digits is 43008, while the sum is 36.

The square root of 28273482 is about 5317.2814482591. The cubic root of 28273482 is about 304.6443296469.

The spelling of 28273482 in words is "twenty-eight million, two hundred seventy-three thousand, four hundred eighty-two".