28584842 has 32 divisors (see below), whose sum is σ = 50984640. Its totient is φ = 11848320.

The previous prime is 28584827. The next prime is 28584859. The reversal of 28584842 is 24848582.

It is a self number, because there is not a number n which added to its sum of digits gives 28584842.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24893 + ... + 26015.

It is an arithmetic number, because the mean of its divisors is an integer number (1593270).

Almost surely, 2^28584842 is an apocalyptic number.

28584842 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

28584842 is a deficient number, since it is larger than the sum of its proper divisors (22399798).

28584842 is a wasteful number, since it uses less digits than its factorization.

28584842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1238.

The product of its digits is 163840, while the sum is 41.

The square root of 28584842 is about 5346.4794023731. The cubic root of 28584842 is about 305.7585419171.

The spelling of 28584842 in words is "twenty-eight million, five hundred eighty-four thousand, eight hundred forty-two".