281648116 has 24 divisors (see below), whose sum is σ = 512064000. Its totient is φ = 135385824.

The previous prime is 281648071. The next prime is 281648117. The reversal of 281648116 is 611846182.

It is a super-2 number, since 2×281648116² = 158651322492698912, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (281648117) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22645 + ... + 32803.

It is an arithmetic number, because the mean of its divisors is an integer number (21336000).

Almost surely, 2^281648116 is an apocalyptic number.

It is an amenable number.

281648116 is a deficient number, since it is larger than the sum of its proper divisors (230415884).

281648116 is a wasteful number, since it uses less digits than its factorization.

281648116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10431 (or 10429 counting only the distinct ones).

The product of its digits is 18432, while the sum is 37.

The square root of 281648116 is about 16782.3751596727. The cubic root of 281648116 is about 655.4943462316.

The spelling of 281648116 in words is "two hundred eighty-one million, six hundred forty-eight thousand, one hundred sixteen".