28589022 has 48 divisors (see below), whose sum is σ = 77231232. Its totient is φ = 7425360.

The previous prime is 28589017. The next prime is 28589039. The reversal of 28589022 is 22098582.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8928 + ... + 11699.

It is an arithmetic number, because the mean of its divisors is an integer number (1608984).

Almost surely, 2^28589022 is an apocalyptic number.

28589022 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

28589022 is an abundant number, since it is smaller than the sum of its proper divisors (48642210).

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

28589022 is a wasteful number, since it uses less digits than its factorization.

28589022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20653 (or 20650 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 36.

The square root of 28589022 is about 5346.8702995304. The cubic root of 28589022 is about 305.7734450186.

The spelling of 28589022 in words is "twenty-eight million, five hundred eighty-nine thousand, twenty-two".