28208494 has 8 divisors (see below), whose sum is σ = 42532560. Its totient is φ = 14030976.

The previous prime is 28208489. The next prime is 28208539. The reversal of 28208494 is 49480282.

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, 36154 + ... + 36925.

It is an arithmetic number, because the mean of its divisors is an integer number (5316570).

Almost surely, 2^28208494 is an apocalyptic number.

28208494 is a deficient number, since it is larger than the sum of its proper divisors (14324066).

28208494 is a wasteful number, since it uses less digits than its factorization.

28208494 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73274.

The product of its (nonzero) digits is 36864, while the sum is 37.

The square root of 28208494 is about 5311.1669150950. The cubic root of 28208494 is about 304.4107372161.

The spelling of 28208494 in words is "twenty-eight million, two hundred eight thousand, four hundred ninety-four".