227977380 has 144 divisors (see below), whose sum is σ = 735920640. Its totient is φ = 56998656.

The previous prime is 227977367. The next prime is 227977391. The reversal of 227977380 is 83779722.

It is a Harshad number since it is a multiple of its sum of digits (45).

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 47 ways as a sum of consecutive naturals, for example, 218901 + ... + 219939.

It is an arithmetic number, because the mean of its divisors is an integer number (5110560).

Almost surely, 2^227977380 is an apocalyptic number.

227977380 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 227977380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (367960320).

227977380 is an abundant number, since it is smaller than the sum of its proper divisors (507943260).

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

227977380 is a wasteful number, since it uses less digits than its factorization.

227977380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1130 (or 1125 counting only the distinct ones).

The product of its (nonzero) digits is 296352, while the sum is 45.

The square root of 227977380 is about 15098.9198289149. The cubic root of 227977380 is about 610.8912708112.

The spelling of 227977380 in words is "two hundred twenty-seven million, nine hundred seventy-seven thousand, three hundred eighty".