271668444 has 12 divisors (see below), whose sum is σ = 633893064. Its totient is φ = 90556144.

The previous prime is 271668443. The next prime is 271668473. The reversal of 271668444 is 444866172.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×271668444² = 147607486930762272, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 271668396 and 271668405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (271668443) 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, 11319507 + ... + 11319530.

It is an arithmetic number, because the mean of its divisors is an integer number (52824422).

Almost surely, 2^271668444 is an apocalyptic number.

It is an amenable number.

271668444 is an abundant number, since it is smaller than the sum of its proper divisors (362224620).

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

271668444 is a wasteful number, since it uses less digits than its factorization.

271668444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22639044 (or 22639042 counting only the distinct ones).

The product of its digits is 258048, while the sum is 42.

The square root of 271668444 is about 16482.3676697251. The cubic root of 271668444 is about 647.6589902903.

The spelling of 271668444 in words is "two hundred seventy-one million, six hundred sixty-eight thousand, four hundred forty-four".