28893152 has 48 divisors (see below), whose sum is σ = 61018272. Its totient is φ = 13432320.

The previous prime is 28893133. The next prime is 28893157. The reversal of 28893152 is 25139882.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28893157) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26702 + ... + 27762.

It is an arithmetic number, because the mean of its divisors is an integer number (1271214).

Almost surely, 2^28893152 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 28893152, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30509136).

28893152 is an abundant number, since it is smaller than the sum of its proper divisors (32125120).

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

28893152 is a wasteful number, since it uses less digits than its factorization.

28893152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1131 (or 1123 counting only the distinct ones).

The product of its digits is 34560, while the sum is 38.

The square root of 28893152 is about 5375.2350646274. The cubic root of 28893152 is about 306.8538953302.

The spelling of 28893152 in words is "twenty-eight million, eight hundred ninety-three thousand, one hundred fifty-two".