28024244207 has 4 divisors (see below), whose sum is σ = 28042941000. Its totient is φ = 28005547416.

The previous prime is 28024244173. The next prime is 28024244231. The reversal of 28024244207 is 70244242082.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 28024244207 - 2³² = 23729276911 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28024244707) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9346148 + ... + 9349145.

It is an arithmetic number, because the mean of its divisors is an integer number (7010735250).

Almost surely, 2^28024244207 is an apocalyptic number.

28024244207 is a deficient number, since it is larger than the sum of its proper divisors (18696793).

28024244207 is a wasteful number, since it uses less digits than its factorization.

28024244207 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18696792.

The product of its (nonzero) digits is 57344, while the sum is 35.

Adding to 28024244207 its reverse (70244242082), we get a palindrome (98268486289).

The spelling of 28024244207 in words is "twenty-eight billion, twenty-four million, two hundred forty-four thousand, two hundred seven".