27128222 has 8 divisors (see below), whose sum is σ = 44391672. Its totient is φ = 12331000.

The previous prime is 27128221. The next prime is 27128251. The reversal of 27128222 is 22282172.

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

It is a junction number, because it is equal to n+sod(n) for n = 27128191 and 27128200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27128221) 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, 616529 + ... + 616572.

It is an arithmetic number, because the mean of its divisors is an integer number (5548959).

Almost surely, 2^27128222 is an apocalyptic number.

27128222 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

27128222 is a deficient number, since it is larger than the sum of its proper divisors (17263450).

27128222 is a wasteful number, since it uses less digits than its factorization.

27128222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1233114.

The product of its digits is 1792, while the sum is 26.

The square root of 27128222 is about 5208.4759767133. The cubic root of 27128222 is about 300.4741465184.

The spelling of 27128222 in words is "twenty-seven million, one hundred twenty-eight thousand, two hundred twenty-two".