28308294 has 24 divisors (see below), whose sum is σ = 70097040. Its totient is φ = 8088048.

The previous prime is 28308257. The next prime is 28308299. The reversal of 28308294 is 49280382.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28308299) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 112209 + ... + 112460.

It is an arithmetic number, because the mean of its divisors is an integer number (2920710).

Almost surely, 2^28308294 is an apocalyptic number.

28308294 is an abundant number, since it is smaller than the sum of its proper divisors (41788746).

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

28308294 is a wasteful number, since it uses less digits than its factorization.

28308294 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 224684 (or 224681 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 36.

The square root of 28308294 is about 5320.5539185314. The cubic root of 28308294 is about 304.7693104653.

The spelling of 28308294 in words is "twenty-eight million, three hundred eight thousand, two hundred ninety-four".