28061122 has 8 divisors (see below), whose sum is σ = 42273036. Its totient is φ = 13970112.

The previous prime is 28061093. The next prime is 28061123. The reversal of 28061122 is 22116082.

It can be written as a sum of positive squares in 2 ways, for example, as 20711601 + 7349521 = 4551^2 + 2711^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 28061093 and 28061102.

It is not an unprimeable number, because it can be changed into a prime (28061123) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29643 + ... + 30574.

Almost surely, 2^28061122 is an apocalyptic number.

28061122 is a deficient number, since it is larger than the sum of its proper divisors (14211914).

28061122 is a wasteful number, since it uses less digits than its factorization.

28061122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60452.

The product of its (nonzero) digits is 384, while the sum is 22.

The square root of 28061122 is about 5297.2749598260. The cubic root of 28061122 is about 303.8796918333.

The spelling of 28061122 in words is "twenty-eight million, sixty-one thousand, one hundred twenty-two".