1272328 has 16 divisors (see below), whose sum is σ = 2403180. Its totient is φ = 631488.

The previous prime is 1272289. The next prime is 1272329. The reversal of 1272328 is 8232721.

It can be written as a sum of positive squares in 2 ways, for example, as 1004004 + 268324 = 1002^2 + 518^2 .

It is not an unprimeable number, because it can be changed into a prime (1272329) 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, 750 + ... + 1762.

2^1272328 is an apocalyptic number.

It is an amenable number.

1272328 is a deficient number, since it is larger than the sum of its proper divisors (1130852).

1272328 is a wasteful number, since it uses less digits than its factorization.

1272328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1176 (or 1172 counting only the distinct ones).

The product of its digits is 1344, while the sum is 25.

The square root of 1272328 is about 1127.9751770318. The cubic root of 1272328 is about 108.3593426045.

It can be divided in two parts, 1272 and 328, that added together give a square (1600 = 40²).

The spelling of 1272328 in words is "one million, two hundred seventy-two thousand, three hundred twenty-eight".