12272770 has 8 divisors (see below), whose sum is σ = 22091004. Its totient is φ = 4909104.

The previous prime is 12272749. The next prime is 12272779. The reversal of 12272770 is 7727221.

It can be written as a sum of positive squares in 2 ways, for example, as 10259209 + 2013561 = 3203^2 + 1419^2 .

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

It is not an unprimeable number, because it can be changed into a prime (12272779) 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, 613629 + ... + 613648.

Almost surely, 2^12272770 is an apocalyptic number.

12272770 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12272770 is a deficient number, since it is larger than the sum of its proper divisors (9818234).

12272770 is a wasteful number, since it uses less digits than its factorization.

12272770 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1227284.

The product of its (nonzero) digits is 2744, while the sum is 28.

The square root of 12272770 is about 3503.2513469633. The cubic root of 12272770 is about 230.6645556328.

Adding to 12272770 its reverse (7727221), we get a palindrome (19999991).

The spelling of 12272770 in words is "twelve million, two hundred seventy-two thousand, seven hundred seventy".