28271030 has 16 divisors (see below), whose sum is σ = 51751440. Its totient is φ = 11116512.

The previous prime is 28271029. The next prime is 28271053. The reversal of 28271030 is 3017282.

It is a super-2 number, since 2×28271030² = 1598502274521800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 28270987 and 28271005.

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, 23369 + ... + 24548.

It is an arithmetic number, because the mean of its divisors is an integer number (3234465).

Almost surely, 2^28271030 is an apocalyptic number.

28271030 is a deficient number, since it is larger than the sum of its proper divisors (23480410).

28271030 is a wasteful number, since it uses less digits than its factorization.

28271030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47983.

The product of its (nonzero) digits is 672, while the sum is 23.

The square root of 28271030 is about 5317.0508743099. The cubic root of 28271030 is about 304.6355226962.

The spelling of 28271030 in words is "twenty-eight million, two hundred seventy-one thousand, thirty".