28154808 has 96 divisors (see below), whose sum is σ = 87609600. Its totient is φ = 8078400.

The previous prime is 28154801. The next prime is 28154831. The reversal of 28154808 is 80845182.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28154801) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 14113 + ... + 15983.

It is an arithmetic number, because the mean of its divisors is an integer number (912600).

Almost surely, 2^28154808 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 28154808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (43804800).

28154808 is an abundant number, since it is smaller than the sum of its proper divisors (59454792).

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

28154808 is a wasteful number, since it uses less digits than its factorization.

28154808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1913 (or 1906 counting only the distinct ones).

The product of its (nonzero) digits is 20480, while the sum is 36.

The square root of 28154808 is about 5306.1104398608. The cubic root of 28154808 is about 304.2174978621.

The spelling of 28154808 in words is "twenty-eight million, one hundred fifty-four thousand, eight hundred eight".