28249302 has 16 divisors (see below), whose sum is σ = 56694960. Its totient is φ = 9383712.

The previous prime is 28249289. The next prime is 28249327. The reversal of 28249302 is 20394282.

It is a self number, because there is not a number n which added to its sum of digits gives 28249302.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6277 + ... + 9792.

It is an arithmetic number, because the mean of its divisors is an integer number (3543435).

Almost surely, 2^28249302 is an apocalyptic number.

28249302 is an abundant number, since it is smaller than the sum of its proper divisors (28445658).

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

28249302 is a wasteful number, since it uses less digits than its factorization.

28249302 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16367.

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

The square root of 28249302 is about 5315.0072436451. The cubic root of 28249302 is about 304.5574590730.

The spelling of 28249302 in words is "twenty-eight million, two hundred forty-nine thousand, three hundred two".