28307468 has 12 divisors (see below), whose sum is σ = 56614992. Its totient is φ = 12131760.

The previous prime is 28307453. The next prime is 28307483. The reversal of 28307468 is 86470382.

It is an interprime number because it is at equal distance from previous prime (28307453) and next prime (28307483).

28307468 is an admirable number.

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, 505463 + ... + 505518.

It is an arithmetic number, because the mean of its divisors is an integer number (4717916).

Almost surely, 2^28307468 is an apocalyptic number.

28307468 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

28307468 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

28307468 is a wasteful number, since it uses less digits than its factorization.

28307468 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1010992 (or 1010990 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 38.

The square root of 28307468 is about 5320.4762944684. The cubic root of 28307468 is about 304.7663461763.

The spelling of 28307468 in words is "twenty-eight million, three hundred seven thousand, four hundred sixty-eight".