28270122 has 16 divisors (see below), whose sum is σ = 56626752. Its totient is φ = 9408960.

The previous prime is 28270093. The next prime is 28270129. The reversal of 28270122 is 22107282.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 28270092 and 28270101.

It is not an unprimeable number, because it can be changed into a prime (28270129) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1122 + ... + 7602.

It is an arithmetic number, because the mean of its divisors is an integer number (3539172).

Almost surely, 2^28270122 is an apocalyptic number.

28270122 is an abundant number, since it is smaller than the sum of its proper divisors (28356630).

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

28270122 is a wasteful number, since it uses less digits than its factorization.

28270122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7213.

The product of its (nonzero) digits is 896, while the sum is 24.

The square root of 28270122 is about 5316.9654879452. The cubic root of 28270122 is about 304.6322612654.

The spelling of 28270122 in words is "twenty-eight million, two hundred seventy thousand, one hundred twenty-two".