1272268 has 12 divisors (see below), whose sum is σ = 2323440. Its totient is φ = 608432.

The previous prime is 1272253. The next prime is 1272269. The reversal of 1272268 is 8622721.

It is a plaindrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (1272269) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6823 + ... + 7006.

It is an arithmetic number, because the mean of its divisors is an integer number (193620).

2^1272268 is an apocalyptic number.

It is an amenable number.

1272268 is a deficient number, since it is larger than the sum of its proper divisors (1051172).

1272268 is a wasteful number, since it uses less digits than its factorization.

1272268 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13856 (or 13854 counting only the distinct ones).

The product of its digits is 2688, while the sum is 28.

The square root of 1272268 is about 1127.9485803883. The cubic root of 1272268 is about 108.3576392537.

Adding to 1272268 its reverse (8622721), we get a palindrome (9894989).

It can be divided in two parts, 1272 and 268, that added together give a triangular number (1540 = T₅₅).

The spelling of 1272268 in words is "one million, two hundred seventy-two thousand, two hundred sixty-eight".