28422822 has 32 divisors (see below), whose sum is σ = 60117120. Its totient is φ = 8933760.

The previous prime is 28422811. The next prime is 28422829. The reversal of 28422822 is 22822482.

It is a self number, because there is not a number n which added to its sum of digits gives 28422822.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28422829) 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 15 ways as a sum of consecutive naturals, for example, 31822 + ... + 32702.

It is an arithmetic number, because the mean of its divisors is an integer number (1878660).

Almost surely, 2^28422822 is an apocalyptic number.

28422822 is an abundant number, since it is smaller than the sum of its proper divisors (31694298).

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

28422822 is a wasteful number, since it uses less digits than its factorization.

28422822 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1188.

The product of its digits is 8192, while the sum is 30.

The square root of 28422822 is about 5331.3058437872. The cubic root of 28422822 is about 305.1797632397.

The spelling of 28422822 in words is "twenty-eight million, four hundred twenty-two thousand, eight hundred twenty-two".