28935458 has 8 divisors (see below), whose sum is σ = 43787628. Its totient is φ = 14339584.

The previous prime is 28935451. The next prime is 28935469. The reversal of 28935458 is 85453982.

It can be written as a sum of positive squares in 2 ways, for example, as 25633969 + 3301489 = 5063^2 + 1817^2 .

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

It is not an unprimeable number, because it can be changed into a prime (28935451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 63791 + ... + 64242.

Almost surely, 2^28935458 is an apocalyptic number.

28935458 is a deficient number, since it is larger than the sum of its proper divisors (14852170).

28935458 is a wasteful number, since it uses less digits than its factorization.

28935458 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128148.

The product of its digits is 345600, while the sum is 44.

The square root of 28935458 is about 5379.1688949130. The cubic root of 28935458 is about 307.0035897397.

The spelling of 28935458 in words is "twenty-eight million, nine hundred thirty-five thousand, four hundred fifty-eight".