28626148 has 12 divisors (see below), whose sum is σ = 51041340. Its totient is φ = 14042912.

The previous prime is 28626139. The next prime is 28626163. The reversal of 28626148 is 84162682.

It can be written as a sum of positive squares in 2 ways, for example, as 10969344 + 17656804 = 3312^2 + 4202^2 .

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 67303 + ... + 67726.

It is an arithmetic number, because the mean of its divisors is an integer number (4253445).

Almost surely, 2^28626148 is an apocalyptic number.

It is an amenable number.

28626148 is a deficient number, since it is larger than the sum of its proper divisors (22415192).

28626148 is a wasteful number, since it uses less digits than its factorization.

28626148 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135086 (or 135084 counting only the distinct ones).

The product of its digits is 36864, while the sum is 37.

The square root of 28626148 is about 5350.3409237169. The cubic root of 28626148 is about 305.9057479525.

The spelling of 28626148 in words is "twenty-eight million, six hundred twenty-six thousand, one hundred forty-eight".