28271450 has 12 divisors (see below), whose sum is σ = 52584990. Its totient is φ = 11308560.

The previous prime is 28271447. The next prime is 28271471. The reversal of 28271450 is 5417282.

It can be written as a sum of positive squares in 3 ways, for example, as 26142769 + 2128681 = 5113^2 + 1459^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 282665 + ... + 282764.

Almost surely, 2^28271450 is an apocalyptic number.

28271450 is a deficient number, since it is larger than the sum of its proper divisors (24313540).

28271450 is a wasteful number, since it uses less digits than its factorization.

28271450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 565441 (or 565436 counting only the distinct ones).

The product of its (nonzero) digits is 4480, while the sum is 29.

The square root of 28271450 is about 5317.0903697417. The cubic root of 28271450 is about 304.6370312638.

The spelling of 28271450 in words is "twenty-eight million, two hundred seventy-one thousand, four hundred fifty".