227488638 has 16 divisors (see below), whose sum is σ = 489975696. Its totient is φ = 69996480.

The previous prime is 227488631. The next prime is 227488669. The reversal of 227488638 is 836884722.

It is a happy number.

227488638 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (227488631) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1458183 + ... + 1458338.

It is an arithmetic number, because the mean of its divisors is an integer number (30623481).

Almost surely, 2^227488638 is an apocalyptic number.

227488638 is an abundant number, since it is smaller than the sum of its proper divisors (262487058).

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

227488638 is a wasteful number, since it uses less digits than its factorization.

227488638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2916539.

The product of its digits is 1032192, while the sum is 48.

The square root of 227488638 is about 15082.7264776631. The cubic root of 227488638 is about 610.4544119225.

The spelling of 227488638 in words is "two hundred twenty-seven million, four hundred eighty-eight thousand, six hundred thirty-eight".