28772960 has 48 divisors (see below), whose sum is σ = 70180992. Its totient is φ = 11136000.

The previous prime is 28772951. The next prime is 28772983. The reversal of 28772960 is 6927782.

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 7 ways as a sum of consecutive naturals, for example, 2060 + ... + 7860.

It is an arithmetic number, because the mean of its divisors is an integer number (1462104).

Almost surely, 2^28772960 is an apocalyptic number.

28772960 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28772960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35090496).

28772960 is an abundant number, since it is smaller than the sum of its proper divisors (41408032).

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

28772960 is a wasteful number, since it uses less digits than its factorization.

28772960 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5847 (or 5839 counting only the distinct ones).

The product of its (nonzero) digits is 84672, while the sum is 41.

The square root of 28772960 is about 5364.0432511306. The cubic root of 28772960 is about 306.4278123308.

The spelling of 28772960 in words is "twenty-eight million, seven hundred seventy-two thousand, nine hundred sixty".