28338522 has 32 divisors (see below), whose sum is σ = 58802112. Its totient is φ = 9097344.

The previous prime is 28338511. The next prime is 28338523. The reversal of 28338522 is 22583382.

It is not an unprimeable number, because it can be changed into a prime (28338523) 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, 23158 + ... + 24350.

It is an arithmetic number, because the mean of its divisors is an integer number (1837566).

Almost surely, 2^28338522 is an apocalyptic number.

28338522 is an abundant number, since it is smaller than the sum of its proper divisors (30463590).

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

28338522 is a wasteful number, since it uses less digits than its factorization.

28338522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1342.

The product of its digits is 23040, while the sum is 33.

The square root of 28338522 is about 5323.3938422777. The cubic root of 28338522 is about 304.8777508816.

The spelling of 28338522 in words is "twenty-eight million, three hundred thirty-eight thousand, five hundred twenty-two".