28130341 has 4 divisors (see below), whose sum is σ = 28169452. Its totient is φ = 28091232.

The previous prime is 28130339. The next prime is 28130351. The reversal of 28130341 is 14303182.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 12496225 + 15634116 = 3535^2 + 3954^2 .

It is a cyclic number.

It is not a de Polignac number, because 28130341 - 2¹ = 28130339 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28130321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18456 + ... + 19921.

It is an arithmetic number, because the mean of its divisors is an integer number (7042363).

Almost surely, 2^28130341 is an apocalyptic number.

It is an amenable number.

28130341 is a deficient number, since it is larger than the sum of its proper divisors (39111).

28130341 is an equidigital number, since it uses as much as digits as its factorization.

28130341 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39110.

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 28130341 is about 5303.8043893040. The cubic root of 28130341 is about 304.1293489548.

The spelling of 28130341 in words is "twenty-eight million, one hundred thirty thousand, three hundred forty-one".