28750368 has 96 divisors (see below), whose sum is σ = 81648000. Its totient is φ = 8830976.

The previous prime is 28750321. The next prime is 28750411. The reversal of 28750368 is 86305782.

It is a tau number, because it is divible by the number of its divisors (96).

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 63808 + ... + 64256.

It is an arithmetic number, because the mean of its divisors is an integer number (850500).

Almost surely, 2^28750368 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 28750368, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40824000).

28750368 is an abundant number, since it is smaller than the sum of its proper divisors (52897632).

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

28750368 is a wasteful number, since it uses less digits than its factorization.

28750368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 514 (or 506 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 39.

The square root of 28750368 is about 5361.9369634489. The cubic root of 28750368 is about 306.3475908333.

The spelling of 28750368 in words is "twenty-eight million, seven hundred fifty thousand, three hundred sixty-eight".