28543074 has 16 divisors (see below), whose sum is σ = 65241408. Its totient is φ = 8155152.

The previous prime is 28543063. The next prime is 28543087. The reversal of 28543074 is 47034582.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 339757 + ... + 339840.

It is an arithmetic number, because the mean of its divisors is an integer number (4077588).

Almost surely, 2^28543074 is an apocalyptic number.

28543074 is an abundant number, since it is smaller than the sum of its proper divisors (36698334).

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

28543074 is a wasteful number, since it uses less digits than its factorization.

28543074 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 679609.

The product of its (nonzero) digits is 26880, while the sum is 33.

The square root of 28543074 is about 5342.5718525819. The cubic root of 28543074 is about 305.6095451388.

The spelling of 28543074 in words is "twenty-eight million, five hundred forty-three thousand, seventy-four".