28119268 has 6 divisors (see below), whose sum is σ = 49208726. Its totient is φ = 14059632.

The previous prime is 28119229. The next prime is 28119269. The reversal of 28119268 is 86291182.

It can be written as a sum of positive squares in only one way, i.e., 27123264 + 996004 = 5208^2 + 998^2 .

It is not an unprimeable number, because it can be changed into a prime (28119269) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3514905 + ... + 3514912.

Almost surely, 2^28119268 is an apocalyptic number.

It is an amenable number.

28119268 is a deficient number, since it is larger than the sum of its proper divisors (21089458).

28119268 is a wasteful number, since it uses less digits than its factorization.

28119268 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7029821 (or 7029819 counting only the distinct ones).

The product of its digits is 13824, while the sum is 37.

The square root of 28119268 is about 5302.7604132188. The cubic root of 28119268 is about 304.0894387117.

The spelling of 28119268 in words is "twenty-eight million, one hundred nineteen thousand, two hundred sixty-eight".