28769468 has 48 divisors (see below), whose sum is σ = 63268800. Its totient is φ = 11374272.

The previous prime is 28769467. The next prime is 28769473. The reversal of 28769468 is 86496782.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28769467) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17030 + ... + 18642.

It is an arithmetic number, because the mean of its divisors is an integer number (1318100).

Almost surely, 2^28769468 is an apocalyptic number.

28769468 is a gapful number since it is divisible by the number (28) 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 28769468, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31634400).

28769468 is an abundant number, since it is smaller than the sum of its proper divisors (34499332).

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

28769468 is a wasteful number, since it uses less digits than its factorization.

28769468 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1651 (or 1635 counting only the distinct ones).

The product of its digits is 1161216, while the sum is 50.

The square root of 28769468 is about 5363.7177405229. The cubic root of 28769468 is about 306.4154153997.

The spelling of 28769468 in words is "twenty-eight million, seven hundred sixty-nine thousand, four hundred sixty-eight".