28234244 has 6 divisors (see below), whose sum is σ = 49409934. Its totient is φ = 14117120.

The previous prime is 28234231. The next prime is 28234267. The reversal of 28234244 is 44243282.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 28217344 + 16900 = 5312^2 + 130^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3529277 + ... + 3529284.

It is an arithmetic number, because the mean of its divisors is an integer number (8234989).

Almost surely, 2^28234244 is an apocalyptic number.

It is an amenable number.

28234244 is a deficient number, since it is larger than the sum of its proper divisors (21175690).

28234244 is a wasteful number, since it uses less digits than its factorization.

28234244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7058565 (or 7058563 counting only the distinct ones).

The product of its digits is 12288, while the sum is 29.

The square root of 28234244 is about 5313.5904998410. The cubic root of 28234244 is about 304.5033357145.

The spelling of 28234244 in words is "twenty-eight million, two hundred thirty-four thousand, two hundred forty-four".