28094480 has 40 divisors (see below), whose sum is σ = 66846912. Its totient is φ = 10975104.

The previous prime is 28094459. The next prime is 28094503. The reversal of 28094480 is 8449082.

It is a tau number, because it is divible by the number of its divisors (40).

It is a self number, because there is not a number n which added to its sum of digits gives 28094480.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 644 + ... + 7523.

Almost surely, 2^28094480 is an apocalyptic number.

28094480 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 28094480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33423456).

28094480 is an abundant number, since it is smaller than the sum of its proper divisors (38752432).

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

28094480 is a wasteful number, since it uses less digits than its factorization.

28094480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8223 (or 8217 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 35.

The square root of 28094480 is about 5300.4226246593. The cubic root of 28094480 is about 304.0000577101. Note that the first 4 decimals are identical.

The spelling of 28094480 in words is "twenty-eight million, ninety-four thousand, four hundred eighty".