28668348 has 36 divisors (see below), whose sum is σ = 74238528. Its totient is φ = 9322560.

The previous prime is 28668337. The next prime is 28668371. The reversal of 28668348 is 84386682.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8236 + ... + 11187.

Almost surely, 2^28668348 is an apocalyptic number.

It is an amenable number.

28668348 is an abundant number, since it is smaller than the sum of its proper divisors (45570180).

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

28668348 is a wasteful number, since it uses less digits than its factorization.

28668348 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19474 (or 19469 counting only the distinct ones).

The product of its digits is 442368, while the sum is 45.

The square root of 28668348 is about 5354.2831452959. The cubic root of 28668348 is about 306.0559938542.

The spelling of 28668348 in words is "twenty-eight million, six hundred sixty-eight thousand, three hundred forty-eight".