28306014 has 48 divisors (see below), whose sum is σ = 62920704. Its totient is φ = 8482320.

The previous prime is 28305983. The next prime is 28306039. The reversal of 28306014 is 41060382.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 92049 + ... + 92355.

It is an arithmetic number, because the mean of its divisors is an integer number (1310848).

Almost surely, 2^28306014 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28306014, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31460352).

28306014 is an abundant number, since it is smaller than the sum of its proper divisors (34614690).

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

28306014 is a wasteful number, since it uses less digits than its factorization.

28306014 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 461 (or 450 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 24.

The square root of 28306014 is about 5320.3396508118. The cubic root of 28306014 is about 304.7611280261.

Adding to 28306014 its reverse (41060382), we get a palindrome (69366396).

The spelling of 28306014 in words is "twenty-eight million, three hundred six thousand, fourteen".