28253302 has 24 divisors (see below), whose sum is σ = 53782920. Its totient is φ = 11007360.

The previous prime is 28253273. The next prime is 28253327. The reversal of 28253302 is 20335282.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12027 + ... + 14182.

It is an arithmetic number, because the mean of its divisors is an integer number (2240955).

Almost surely, 2^28253302 is an apocalyptic number.

28253302 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

28253302 is a deficient number, since it is larger than the sum of its proper divisors (25529618).

28253302 is a wasteful number, since it uses less digits than its factorization.

28253302 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26236 (or 26229 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 28253302 is about 5315.3835233217. The cubic root of 28253302 is about 304.5718331431.

Adding to 28253302 its reverse (20335282), we get a palindrome (48588584).

The spelling of 28253302 in words is "twenty-eight million, two hundred fifty-three thousand, three hundred two".