28348370 has 32 divisors (see below), whose sum is σ = 53611200. Its totient is φ = 10777536.

The previous prime is 28348357. The next prime is 28348387. The reversal of 28348370 is 7384382.

It is a self number, because there is not a number n which added to its sum of digits gives 28348370.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 18701 + ... + 20159.

It is an arithmetic number, because the mean of its divisors is an integer number (1675350).

Almost surely, 2^28348370 is an apocalyptic number.

28348370 is a deficient number, since it is larger than the sum of its proper divisors (25262830).

28348370 is a wasteful number, since it uses less digits than its factorization.

28348370 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1562.

The product of its (nonzero) digits is 32256, while the sum is 35.

The square root of 28348370 is about 5324.3187357633. The cubic root of 28348370 is about 304.9130631015.

The spelling of 28348370 in words is "twenty-eight million, three hundred forty-eight thousand, three hundred seventy".