28924104 has 48 divisors (see below), whose sum is σ = 79122960. Its totient is φ = 8738400.

The previous prime is 28924067. The next prime is 28924109. The reversal of 28924104 is 40142982.

It is not an unprimeable number, because it can be changed into a prime (28924109) 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, 87219 + ... + 87549.

It is an arithmetic number, because the mean of its divisors is an integer number (1648395).

Almost surely, 2^28924104 is an apocalyptic number.

28924104 is a gapful number since it is divisible by the number (24) 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 28924104, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39561480).

28924104 is an abundant number, since it is smaller than the sum of its proper divisors (50198856).

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

28924104 is a wasteful number, since it uses less digits than its factorization.

28924104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 682 (or 347 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 30.

The square root of 28924104 is about 5378.1134238690. The cubic root of 28924104 is about 306.9634293849.

It can be divided in two parts, 2892 and 4104, that added together give a palindrome (6996).

The spelling of 28924104 in words is "twenty-eight million, nine hundred twenty-four thousand, one hundred four".