281230116 has 24 divisors (see below), whose sum is σ = 694804320. Its totient is φ = 88228992.

The previous prime is 281230087. The next prime is 281230123. The reversal of 281230116 is 611032182.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 689086 + ... + 689493.

It is an arithmetic number, because the mean of its divisors is an integer number (28950180).

Almost surely, 2^281230116 is an apocalyptic number.

It is an amenable number.

281230116 is an abundant number, since it is smaller than the sum of its proper divisors (413574204).

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

281230116 is a wasteful number, since it uses less digits than its factorization.

281230116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1378603 (or 1378601 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 24.

The square root of 281230116 is about 16769.9169944278. The cubic root of 281230116 is about 655.1699079448.

Adding to 281230116 its reverse (611032182), we get a palindrome (892262298).

The spelling of 281230116 in words is "two hundred eighty-one million, two hundred thirty thousand, one hundred sixteen".