28436857230 has 16 divisors (see below), whose sum is σ = 68248457424. Its totient is φ = 7583161920.

The previous prime is 28436857133. The next prime is 28436857283. The reversal of 28436857230 is 3275863482.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 28436857230.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 473947591 + ... + 473947650.

It is an arithmetic number, because the mean of its divisors is an integer number (4265528589).

Almost surely, 2^28436857230 is an apocalyptic number.

28436857230 is an abundant number, since it is smaller than the sum of its proper divisors (39811600194).

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

28436857230 is a wasteful number, since it uses less digits than its factorization.

28436857230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 947895251.

The product of its (nonzero) digits is 1935360, while the sum is 48.

The spelling of 28436857230 in words is "twenty-eight billion, four hundred thirty-six million, eight hundred fifty-seven thousand, two hundred thirty".