187228368 has 40 divisors (see below), whose sum is σ = 537416000. Its totient is φ = 62409312.

The previous prime is 187228343. The next prime is 187228381. The reversal of 187228368 is 863822781.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 216268 + ... + 217131.

It is an arithmetic number, because the mean of its divisors is an integer number (13435400).

Almost surely, 2^187228368 is an apocalyptic number.

187228368 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

187228368 is an abundant number, since it is smaller than the sum of its proper divisors (350187632).

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

187228368 is a wasteful number, since it uses less digits than its factorization.

187228368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 433416 (or 433404 counting only the distinct ones).

The product of its digits is 258048, while the sum is 45.

The square root of 187228368 is about 13683.1417444971. The cubic root of 187228368 is about 572.0805956821.

The spelling of 187228368 in words is "one hundred eighty-seven million, two hundred twenty-eight thousand, three hundred sixty-eight".