28224514 has 8 divisors (see below), whose sum is σ = 43135740. Its totient is φ = 13845936.

The previous prime is 28224433. The next prime is 28224529. The reversal of 28224514 is 41542282.

It can be written as a sum of positive squares in 2 ways, for example, as 28037025 + 187489 = 5295^2 + 433^2 .

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

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 in 3 ways as a sum of consecutive naturals, for example, 133029 + ... + 133240.

Almost surely, 2^28224514 is an apocalyptic number.

28224514 is a deficient number, since it is larger than the sum of its proper divisors (14911226).

28224514 is a wasteful number, since it uses less digits than its factorization.

28224514 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 266324.

The product of its digits is 5120, while the sum is 28.

The square root of 28224514 is about 5312.6748441816. The cubic root of 28224514 is about 304.4683526886.

Adding to 28224514 its reverse (41542282), we get a palindrome (69766796).

The spelling of 28224514 in words is "twenty-eight million, two hundred twenty-four thousand, five hundred fourteen".