28258152 has 48 divisors (see below), whose sum is σ = 76508640. Its totient is φ = 8693568.

The previous prime is 28258129. The next prime is 28258157. The reversal of 28258152 is 25185282.

It is not an unprimeable number, because it can be changed into a prime (28258157) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 573 + ... + 7539.

It is an arithmetic number, because the mean of its divisors is an integer number (1593930).

Almost surely, 2^28258152 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 28258152, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38254320).

28258152 is an abundant number, since it is smaller than the sum of its proper divisors (48250488).

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

28258152 is a wasteful number, since it uses less digits than its factorization.

28258152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7002 (or 6985 counting only the distinct ones).

The product of its digits is 12800, while the sum is 33.

The square root of 28258152 is about 5315.8397267036. The cubic root of 28258152 is about 304.5892598835.

The spelling of 28258152 in words is "twenty-eight million, two hundred fifty-eight thousand, one hundred fifty-two".