28252122 has 8 divisors (see below), whose sum is σ = 56504256. Its totient is φ = 9417372.

The previous prime is 28252117. The next prime is 28252151. The reversal of 28252122 is 22125282.

It is a sphenic number, since it is the product of 3 distinct primes.

28252122 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 28252092 and 28252101.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2354338 + ... + 2354349.

It is an arithmetic number, because the mean of its divisors is an integer number (7063032).

Almost surely, 2^28252122 is an apocalyptic number.

28252122 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

28252122 is a wasteful number, since it uses less digits than its factorization.

28252122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4708692.

The product of its digits is 1280, while the sum is 24.

The square root of 28252122 is about 5315.2725235871. The cubic root of 28252122 is about 304.5675929335.

The spelling of 28252122 in words is "twenty-eight million, two hundred fifty-two thousand, one hundred twenty-two".