28351368 has 48 divisors (see below), whose sum is σ = 77550720. Its totient is φ = 9356256.

The previous prime is 28351339. The next prime is 28351373. The reversal of 28351368 is 86315382.

28351368 is a `hidden beast` number, since 2 + 83 + 513 + 68 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

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 in 11 ways as a sum of consecutive naturals, for example, 5505 + ... + 9327.

It is an arithmetic number, because the mean of its divisors is an integer number (1615640).

Almost surely, 2^28351368 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28351368, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38775360).

28351368 is an abundant number, since it is smaller than the sum of its proper divisors (49199352).

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

28351368 is a wasteful number, since it uses less digits than its factorization.

28351368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3938 (or 3931 counting only the distinct ones).

The product of its digits is 34560, while the sum is 36.

The square root of 28351368 is about 5324.6002666867. The cubic root of 28351368 is about 304.9238114813.

The spelling of 28351368 in words is "twenty-eight million, three hundred fifty-one thousand, three hundred sixty-eight".