28501152 has 96 divisors (see below), whose sum is σ = 78994944. Its totient is φ = 8985600.

The previous prime is 28501141. The next prime is 28501177. The reversal of 28501152 is 25110582.

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

It is a Harshad number since it is a multiple of its sum of digits (24).

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, 181458 + ... + 181614.

It is an arithmetic number, because the mean of its divisors is an integer number (822864).

Almost surely, 2^28501152 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 28501152, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39497472).

28501152 is an abundant number, since it is smaller than the sum of its proper divisors (50493792).

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

28501152 is a wasteful number, since it uses less digits than its factorization.

28501152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 262 (or 254 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 24.

The square root of 28501152 is about 5338.6470196109. The cubic root of 28501152 is about 305.4598527732.

The spelling of 28501152 in words is "twenty-eight million, five hundred one thousand, one hundred fifty-two".