28628022 has 24 divisors (see below), whose sum is σ = 60432696. Its totient is φ = 9039744.

The previous prime is 28628021. The next prime is 28628027. The reversal of 28628022 is 22082682.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28628021) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 4443 + ... + 8774.

It is an arithmetic number, because the mean of its divisors is an integer number (2518029).

Almost surely, 2^28628022 is an apocalyptic number.

28628022 is an abundant number, since it is smaller than the sum of its proper divisors (31804674).

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

28628022 is a wasteful number, since it uses less digits than its factorization.

28628022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13260 (or 13241 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 30.

The square root of 28628022 is about 5350.5160498778. The cubic root of 28628022 is about 305.9124231417.

The spelling of 28628022 in words is "twenty-eight million, six hundred twenty-eight thousand, twenty-two".