28856030 has 32 divisors (see below), whose sum is σ = 61945344. Its totient is φ = 9462816.

The previous prime is 28856027. The next prime is 28856039. The reversal of 28856030 is 3065882.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28856039) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7352 + ... + 10571.

It is an arithmetic number, because the mean of its divisors is an integer number (1935792).

Almost surely, 2^28856030 is an apocalyptic number.

28856030 is an abundant number, since it is smaller than the sum of its proper divisors (33089314).

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

28856030 is a wasteful number, since it uses less digits than its factorization.

28856030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17960.

The product of its (nonzero) digits is 11520, while the sum is 32.

The square root of 28856030 is about 5371.7808964998. The cubic root of 28856030 is about 306.7224234368.

The spelling of 28856030 in words is "twenty-eight million, eight hundred fifty-six thousand, thirty".