28340922 has 32 divisors (see below), whose sum is σ = 60600960. Its totient is φ = 8814080.

The previous prime is 28340911. The next prime is 28340929. The reversal of 28340922 is 22904382.

It is a self number, because there is not a number n which added to its sum of digits gives 28340922.

It is not an unprimeable number, because it can be changed into a prime (28340929) 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, 3154 + ... + 8162.

It is an arithmetic number, because the mean of its divisors is an integer number (1893780).

Almost surely, 2^28340922 is an apocalyptic number.

28340922 is an abundant number, since it is smaller than the sum of its proper divisors (32260038).

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

28340922 is a wasteful number, since it uses less digits than its factorization.

28340922 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5078.

The product of its (nonzero) digits is 6912, while the sum is 30.

The square root of 28340922 is about 5323.6192576104. The cubic root of 28340922 is about 304.8863573755.

The spelling of 28340922 in words is "twenty-eight million, three hundred forty thousand, nine hundred twenty-two".