28055210 has 32 divisors (see below), whose sum is σ = 53568000. Its totient is φ = 10549440.

The previous prime is 28055201. The next prime is 28055231. The reversal of 28055210 is 1255082.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27815 + ... + 28805.

It is an arithmetic number, because the mean of its divisors is an integer number (1674000).

Almost surely, 2^28055210 is an apocalyptic number.

28055210 is a deficient number, since it is larger than the sum of its proper divisors (25512790).

28055210 is a wasteful number, since it uses less digits than its factorization.

28055210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1166.

The product of its (nonzero) digits is 800, while the sum is 23.

The square root of 28055210 is about 5296.7169076703. The cubic root of 28055210 is about 303.8583495777.

The spelling of 28055210 in words is "twenty-eight million, fifty-five thousand, two hundred ten".