28254845 has 8 divisors (see below), whose sum is σ = 35075160. Its totient is φ = 21824320.

The previous prime is 28254841. The next prime is 28254847. The reversal of 28254845 is 54845282.

It can be written as a sum of positive squares in 4 ways, for example, as 143641 + 28111204 = 379^2 + 5302^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 28254845 - 2² = 28254841 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 28254799 and 28254808.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28254841) 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, 97286 + ... + 97575.

It is an arithmetic number, because the mean of its divisors is an integer number (4384395).

Almost surely, 2^28254845 is an apocalyptic number.

It is an amenable number.

28254845 is a deficient number, since it is larger than the sum of its proper divisors (6820315).

28254845 is a wasteful number, since it uses less digits than its factorization.

28254845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 194895.

The product of its digits is 102400, while the sum is 38.

The square root of 28254845 is about 5315.5286660877. The cubic root of 28254845 is about 304.5773775781.

The spelling of 28254845 in words is "twenty-eight million, two hundred fifty-four thousand, eight hundred forty-five".