28958270 has 16 divisors (see below), whose sum is σ = 56863728. Its totient is φ = 10530240.

The previous prime is 28958263. The next prime is 28958291. The reversal of 28958270 is 7285982.

It is a happy number.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 131519 + ... + 131738.

It is an arithmetic number, because the mean of its divisors is an integer number (3553983).

Almost surely, 2^28958270 is an apocalyptic number.

28958270 is a deficient number, since it is larger than the sum of its proper divisors (27905458).

28958270 is a wasteful number, since it uses less digits than its factorization.

28958270 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 263275.

The product of its (nonzero) digits is 80640, while the sum is 41.

The square root of 28958270 is about 5381.2888790698. The cubic root of 28958270 is about 307.0842465618.

The spelling of 28958270 in words is "twenty-eight million, nine hundred fifty-eight thousand, two hundred seventy".