28094304 has 96 divisors (see below), whose sum is σ = 85349376. Its totient is φ = 7925760.

The previous prime is 28094279. The next prime is 28094309. The reversal of 28094304 is 40349082.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (96).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28094309) 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, 64969 + ... + 65399.

It is an arithmetic number, because the mean of its divisors is an integer number (889056).

Almost surely, 2^28094304 is an apocalyptic number.

28094304 is a gapful number since it is divisible by the number (24) 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 28094304, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42674688).

28094304 is an abundant number, since it is smaller than the sum of its proper divisors (57255072).

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

28094304 is a wasteful number, since it uses less digits than its factorization.

28094304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 548 (or 540 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 30.

The square root of 28094304 is about 5300.4060221836. The cubic root of 28094304 is about 303.9994228983. Note that the first 3 decimals are identical.

The spelling of 28094304 in words is "twenty-eight million, ninety-four thousand, three hundred four".