227662640 has 120 divisors (see below), whose sum is σ = 577872240. Its totient is φ = 83349504.

The previous prime is 227662601. The next prime is 227662649. The reversal of 227662640 is 46266722.

227662640 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (35) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 227662640.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (227662649) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 994046 + ... + 994274.

It is an arithmetic number, because the mean of its divisors is an integer number (4815602).

Almost surely, 2^227662640 is an apocalyptic number.

227662640 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 227662640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (288936120).

227662640 is an abundant number, since it is smaller than the sum of its proper divisors (350209600).

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

227662640 is a wasteful number, since it uses less digits than its factorization.

227662640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 319 (or 296 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 35.

The square root of 227662640 is about 15088.4936292527. The cubic root of 227662640 is about 610.6100141525.

The spelling of 227662640 in words is "two hundred twenty-seven million, six hundred sixty-two thousand, six hundred forty".