28355960 has 16 divisors (see below), whose sum is σ = 63801000. Its totient is φ = 11342368.

The previous prime is 28355953. The next prime is 28355981. The reversal of 28355960 is 6955382.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 354410 + ... + 354489.

Almost surely, 2^28355960 is an apocalyptic number.

28355960 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28355960 is an abundant number, since it is smaller than the sum of its proper divisors (35445040).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28355960 is a wasteful number, since it uses less digits than its factorization.

28355960 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 708910 (or 708906 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 38.

The square root of 28355960 is about 5325.0314553062. The cubic root of 28355960 is about 304.9402731744.

The spelling of 28355960 in words is "twenty-eight million, three hundred fifty-five thousand, nine hundred sixty".