271228638 has 8 divisors (see below), whose sum is σ = 542457288. Its totient is φ = 90409544.

The previous prime is 271228637. The next prime is 271228669. The reversal of 271228638 is 836822172.

It is a sphenic number, since it is the product of 3 distinct primes.

271228638 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 271228596 and 271228605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (271228637) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22602381 + ... + 22602392.

It is an arithmetic number, because the mean of its divisors is an integer number (67807161).

Almost surely, 2^271228638 is an apocalyptic number.

271228638 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

271228638 is a wasteful number, since it uses less digits than its factorization.

271228638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45204778.

The product of its digits is 64512, while the sum is 39.

The square root of 271228638 is about 16469.0205537549. The cubic root of 271228638 is about 647.3093015836.

The spelling of 271228638 in words is "two hundred seventy-one million, two hundred twenty-eight thousand, six hundred thirty-eight".