28682412 has 48 divisors (see below), whose sum is σ = 73446912. Its totient is φ = 8639680.

The previous prime is 28682399. The next prime is 28682413. The reversal of 28682412 is 21428682.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (28682413) by changing a digit.

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, 25453 + ... + 26555.

It is an arithmetic number, because the mean of its divisors is an integer number (1530144).

Almost surely, 2^28682412 is an apocalyptic number.

28682412 is a gapful number since it is divisible by the number (22) 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 28682412, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36723456).

28682412 is an abundant number, since it is smaller than the sum of its proper divisors (44764500).

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

28682412 is a wasteful number, since it uses less digits than its factorization.

28682412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1318 (or 1316 counting only the distinct ones).

The product of its digits is 12288, while the sum is 33.

The square root of 28682412 is about 5355.5963253404. The cubic root of 28682412 is about 306.1060335684.

The spelling of 28682412 in words is "twenty-eight million, six hundred eighty-two thousand, four hundred twelve".