28306448250 has 32 divisors (see below), whose sum is σ = 70652896704. Its totient is φ = 7548386000.

The previous prime is 28306448249. The next prime is 28306448251. The reversal of 28306448250 is 5284460382.

It is an interprime number because it is at equal distance from previous prime (28306448249) and next prime (28306448251).

It is not an unprimeable number, because it can be changed into a prime (28306448251) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18870216 + ... + 18871715.

It is an arithmetic number, because the mean of its divisors is an integer number (2207903022).

Almost surely, 2^28306448250 is an apocalyptic number.

28306448250 is an abundant number, since it is smaller than the sum of its proper divisors (42346448454).

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

28306448250 is a wasteful number, since it uses less digits than its factorization.

28306448250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37741951 (or 37741941 counting only the distinct ones).

The product of its (nonzero) digits is 368640, while the sum is 42.

The spelling of 28306448250 in words is "twenty-eight billion, three hundred six million, four hundred forty-eight thousand, two hundred fifty".