28808254 has 8 divisors (see below), whose sum is σ = 43343928. Its totient is φ = 14360280.

The previous prime is 28808249. The next prime is 28808261. The reversal of 28808254 is 45280882.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21097 + ... + 22420.

It is an arithmetic number, because the mean of its divisors is an integer number (5417991).

Almost surely, 2^28808254 is an apocalyptic number.

28808254 is a deficient number, since it is larger than the sum of its proper divisors (14535674).

28808254 is a wasteful number, since it uses less digits than its factorization.

28808254 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43850.

The product of its (nonzero) digits is 40960, while the sum is 37.

The square root of 28808254 is about 5367.3321119528. The cubic root of 28808254 is about 306.5530531144.

The spelling of 28808254 in words is "twenty-eight million, eight hundred eight thousand, two hundred fifty-four".