227987780 has 12 divisors (see below), whose sum is σ = 478774380. Its totient is φ = 91195104.

The previous prime is 227987761. The next prime is 227987791. The reversal of 227987780 is 87789722.

It can be written as a sum of positive squares in 2 ways, for example, as 144192064 + 83795716 = 12008^2 + 9154^2 .

It is a hoax number, since the sum of its digits (50) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5699675 + ... + 5699714.

It is an arithmetic number, because the mean of its divisors is an integer number (39897865).

Almost surely, 2^227987780 is an apocalyptic number.

227987780 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

227987780 is an abundant number, since it is smaller than the sum of its proper divisors (250786600).

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

227987780 is a wasteful number, since it uses less digits than its factorization.

227987780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11399398 (or 11399396 counting only the distinct ones).

The product of its (nonzero) digits is 790272, while the sum is 50.

The square root of 227987780 is about 15099.2642204844. The cubic root of 227987780 is about 610.9005599968.

The spelling of 227987780 in words is "two hundred twenty-seven million, nine hundred eighty-seven thousand, seven hundred eighty".