28204058 has 8 divisors (see below), whose sum is σ = 42341952. Its totient is φ = 14090076.

The previous prime is 28204051. The next prime is 28204067. The reversal of 28204058 is 85040282.

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

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 28204058.

It is not an unprimeable number, because it can be changed into a prime (28204051) 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, 2660 + ... + 7967.

It is an arithmetic number, because the mean of its divisors is an integer number (5292744).

Almost surely, 2^28204058 is an apocalyptic number.

28204058 is a deficient number, since it is larger than the sum of its proper divisors (14137894).

28204058 is a wasteful number, since it uses less digits than its factorization.

28204058 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11956.

The product of its (nonzero) digits is 5120, while the sum is 29.

The square root of 28204058 is about 5310.7492880007. The cubic root of 28204058 is about 304.3947794125.

The spelling of 28204058 in words is "twenty-eight million, two hundred four thousand, fifty-eight".