28068424 has 16 divisors (see below), whose sum is σ = 53521200. Its totient is φ = 13796112.

The previous prime is 28068421. The next prime is 28068431. The reversal of 28068424 is 42486082.

It is a self number, because there is not a number n which added to its sum of digits gives 28068424.

It is not an unprimeable number, because it can be changed into a prime (28068421) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29262 + ... + 30205.

It is an arithmetic number, because the mean of its divisors is an integer number (3345075).

Almost surely, 2^28068424 is an apocalyptic number.

It is an amenable number.

28068424 is a deficient number, since it is larger than the sum of its proper divisors (25452776).

28068424 is a wasteful number, since it uses less digits than its factorization.

28068424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59532 (or 59528 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 34.

The square root of 28068424 is about 5297.9641372890. The cubic root of 28068424 is about 303.9060478366.

The spelling of 28068424 in words is "twenty-eight million, sixty-eight thousand, four hundred twenty-four".