227688340 has 48 divisors (see below), whose sum is σ = 526829184. Its totient is φ = 81968000.

The previous prime is 227688323. The next prime is 227688341. The reversal of 227688340 is 43886722.

It is a junction number, because it is equal to n+sod(n) for n = 227688293 and 227688302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (227688341) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17097 + ... + 27343.

It is an arithmetic number, because the mean of its divisors is an integer number (10975608).

Almost surely, 2^227688340 is an apocalyptic number.

227688340 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 227688340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (263414592).

227688340 is an abundant number, since it is smaller than the sum of its proper divisors (299140844).

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

227688340 is a wasteful number, since it uses less digits than its factorization.

227688340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10368 (or 10366 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 40.

The square root of 227688340 is about 15089.3452475580. The cubic root of 227688340 is about 610.6329897959.

The spelling of 227688340 in words is "two hundred twenty-seven million, six hundred eighty-eight thousand, three hundred forty".