28464558 has 8 divisors (see below), whose sum is σ = 56929128. Its totient is φ = 9488184.

The previous prime is 28464529. The next prime is 28464577. The reversal of 28464558 is 85546482.

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

28464558 is an admirable number.

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, 2372041 + ... + 2372052.

It is an arithmetic number, because the mean of its divisors is an integer number (7116141).

Almost surely, 2^28464558 is an apocalyptic number.

28464558 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

28464558 is a wasteful number, since it uses less digits than its factorization.

28464558 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4744098.

The product of its digits is 307200, while the sum is 42.

The square root of 28464558 is about 5335.2186459413. The cubic root of 28464558 is about 305.3290652497.

The spelling of 28464558 in words is "twenty-eight million, four hundred sixty-four thousand, five hundred fifty-eight".