28431432230 has 96 divisors (see below), whose sum is σ = 58411725696. Its totient is φ = 9923493888.

The previous prime is 28431432223. The next prime is 28431432251. The reversal of 28431432230 is 3223413482.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2879462 + ... + 2889318.

It is an arithmetic number, because the mean of its divisors is an integer number (608455476).

Almost surely, 2^28431432230 is an apocalyptic number.

28431432230 is an abundant number, since it is smaller than the sum of its proper divisors (29980293466).

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

28431432230 is a wasteful number, since it uses less digits than its factorization.

28431432230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9966 (or 9947 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 32.

The spelling of 28431432230 in words is "twenty-eight billion, four hundred thirty-one million, four hundred thirty-two thousand, two hundred thirty".