28048330 has 8 divisors (see below), whose sum is σ = 50487012. Its totient is φ = 11219328.

The previous prime is 28048327. The next prime is 28048343. The reversal of 28048330 is 3384082.

28048330 = 654² + 655² + ... + 713².

It can be written as a sum of positive squares in 2 ways, for example, as 27846729 + 201601 = 5277^2 + 449^2 .

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 (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1402407 + ... + 1402426.

Almost surely, 2^28048330 is an apocalyptic number.

28048330 is a deficient number, since it is larger than the sum of its proper divisors (22438682).

28048330 is a wasteful number, since it uses less digits than its factorization.

28048330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2804840.

The product of its (nonzero) digits is 4608, while the sum is 28.

The square root of 28048330 is about 5296.0674089366. The cubic root of 28048330 is about 303.8335090774.

The spelling of 28048330 in words is "twenty-eight million, forty-eight thousand, three hundred thirty".