28535458 has 8 divisors (see below), whose sum is σ = 48917952. Its totient is φ = 12229476.

The previous prime is 28535453. The next prime is 28535471. The reversal of 28535458 is 85453582.

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

It is a self number, because there is not a number n which added to its sum of digits gives 28535458.

It is not an unprimeable number, because it can be changed into a prime (28535453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1019110 + ... + 1019137.

It is an arithmetic number, because the mean of its divisors is an integer number (6114744).

Almost surely, 2^28535458 is an apocalyptic number.

28535458 is a deficient number, since it is larger than the sum of its proper divisors (20382494).

28535458 is a wasteful number, since it uses less digits than its factorization.

28535458 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2038256.

The product of its digits is 192000, while the sum is 40.

The square root of 28535458 is about 5341.8590396977. The cubic root of 28535458 is about 305.5823613190.

The spelling of 28535458 in words is "twenty-eight million, five hundred thirty-five thousand, four hundred fifty-eight".