28840562 has 8 divisors (see below), whose sum is σ = 43305600. Its totient is φ = 14405364.

The previous prime is 28840561. The next prime is 28840583. The reversal of 28840562 is 26504882.

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 (28840561) 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, 4862 + ... + 9017.

It is an arithmetic number, because the mean of its divisors is an integer number (5413200).

Almost surely, 2^28840562 is an apocalyptic number.

28840562 is a deficient number, since it is larger than the sum of its proper divisors (14465038).

28840562 is a wasteful number, since it uses less digits than its factorization.

28840562 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14920.

The product of its (nonzero) digits is 30720, while the sum is 35.

The square root of 28840562 is about 5370.3409575184. The cubic root of 28840562 is about 306.6676084302.

The spelling of 28840562 in words is "twenty-eight million, eight hundred forty thousand, five hundred sixty-two".