28254304 has 48 divisors (see below), whose sum is σ = 62530272. Its totient is φ = 12469248.

The previous prime is 28254301. The next prime is 28254307. The reversal of 28254304 is 40345282.

It is an interprime number because it is at equal distance from previous prime (28254301) and next prime (28254307).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28254301) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8092 + ... + 11044.

It is an arithmetic number, because the mean of its divisors is an integer number (1302714).

Almost surely, 2^28254304 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 28254304, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31265136).

28254304 is an abundant number, since it is smaller than the sum of its proper divisors (34275968).

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

28254304 is a wasteful number, since it uses less digits than its factorization.

28254304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2999 (or 2991 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 28.

The square root of 28254304 is about 5315.4777772087. The cubic root of 28254304 is about 304.5754336352.

Adding to 28254304 its reverse (40345282), we get a palindrome (68599586).

The spelling of 28254304 in words is "twenty-eight million, two hundred fifty-four thousand, three hundred four".