28024244242 has 8 divisors (see below), whose sum is σ = 42048780300. Its totient is φ = 14007984144.

The previous prime is 28024244231. The next prime is 28024244291. The reversal of 28024244242 is 24244242082.

It can be written as a sum of positive squares in 2 ways, for example, as 17980396281 + 10043847961 = 134091^2 + 100219^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 28024244198 and 28024244207.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2060517 + ... + 2074072.

Almost surely, 2^28024244242 is an apocalyptic number.

28024244242 is a deficient number, since it is larger than the sum of its proper divisors (14024536058).

28024244242 is a wasteful number, since it uses less digits than its factorization.

28024244242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4137980.

The product of its (nonzero) digits is 65536, while the sum is 34.

The spelling of 28024244242 in words is "twenty-eight billion, twenty-four million, two hundred forty-four thousand, two hundred forty-two".