28074858 has 32 divisors (see below), whose sum is σ = 66963456. Its totient is φ = 7672368.

The previous prime is 28074857. The next prime is 28074863. The reversal of 28074858 is 85847082.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is not an unprimeable number, because it can be changed into a prime (28074853) 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 15 ways as a sum of consecutive naturals, for example, 13566 + ... + 15497.

It is an arithmetic number, because the mean of its divisors is an integer number (2092608).

Almost surely, 2^28074858 is an apocalyptic number.

28074858 is an abundant number, since it is smaller than the sum of its proper divisors (38888598).

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

28074858 is a wasteful number, since it uses less digits than its factorization.

28074858 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29098.

The product of its (nonzero) digits is 143360, while the sum is 42.

The square root of 28074858 is about 5298.5713168740. The cubic root of 28074858 is about 303.9292670731.

The spelling of 28074858 in words is "twenty-eight million, seventy-four thousand, eight hundred fifty-eight".