28015368 has 16 divisors (see below), whose sum is σ = 70038480. Its totient is φ = 9338448.

The previous prime is 28015349. The next prime is 28015369. The reversal of 28015368 is 86351082.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (28015369) by changing a digit.

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, 583630 + ... + 583677.

It is an arithmetic number, because the mean of its divisors is an integer number (4377405).

Almost surely, 2^28015368 is an apocalyptic number.

It is an amenable number.

28015368 is an abundant number, since it is smaller than the sum of its proper divisors (42023112).

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

28015368 is a wasteful number, since it uses less digits than its factorization.

28015368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1167316 (or 1167312 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 33.

The square root of 28015368 is about 5292.9545624349. The cubic root of 28015368 is about 303.7144421450.

The spelling of 28015368 in words is "twenty-eight million, fifteen thousand, three hundred sixty-eight".