28318210242 has 48 divisors (see below), whose sum is σ = 69350732640. Its totient is φ = 7665077952.

The previous prime is 28318210231. The next prime is 28318210273. The reversal of 28318210242 is 24201281382.

It is a super-2 number, since 2×28318210242² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2529163 + ... + 2540334.

It is an arithmetic number, because the mean of its divisors is an integer number (1444806930).

Almost surely, 2^28318210242 is an apocalyptic number.

28318210242 is an abundant number, since it is smaller than the sum of its proper divisors (41032522398).

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

28318210242 is a wasteful number, since it uses less digits than its factorization.

28318210242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5069535 (or 5069528 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 33.

The spelling of 28318210242 in words is "twenty-eight billion, three hundred eighteen million, two hundred ten thousand, two hundred forty-two".