28555030 has 32 divisors (see below), whose sum is σ = 60641280. Its totient is φ = 9473760.

The previous prime is 28554979. The next prime is 28555049. The reversal of 28555030 is 3055582.

It is a self number, because there is not a number n which added to its sum of digits gives 28555030.

It is a congruent number.

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, 4410 + ... + 8749.

It is an arithmetic number, because the mean of its divisors is an integer number (1895040).

Almost surely, 2^28555030 is an apocalyptic number.

28555030 is an abundant number, since it is smaller than the sum of its proper divisors (32086250).

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

28555030 is a wasteful number, since it uses less digits than its factorization.

28555030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13204.

The product of its (nonzero) digits is 6000, while the sum is 28.

The square root of 28555030 is about 5343.6906721853. The cubic root of 28555030 is about 305.6522099859.

The spelling of 28555030 in words is "twenty-eight million, five hundred fifty-five thousand, thirty".