28024242 has 8 divisors (see below), whose sum is σ = 56048496. Its totient is φ = 9341412.

The previous prime is 28024219. The next prime is 28024247. The reversal of 28024242 is 24242082.

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

28024242 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (28024247) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2335348 + ... + 2335359.

It is an arithmetic number, because the mean of its divisors is an integer number (7006062).

Almost surely, 2^28024242 is an apocalyptic number.

28024242 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

28024242 is a wasteful number, since it uses less digits than its factorization.

28024242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4670712.

The product of its (nonzero) digits is 2048, while the sum is 24.

The square root of 28024242 is about 5293.7927802286. The cubic root of 28024242 is about 303.7465064206.

The spelling of 28024242 in words is "twenty-eight million, twenty-four thousand, two hundred forty-two".