1272938 has 4 divisors (see below), whose sum is σ = 1909410. Its totient is φ = 636468.

The previous prime is 1272937. The next prime is 1272941. The reversal of 1272938 is 8392721.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1270129 + 2809 = 1127^2 + 53^2 .

It is not an unprimeable number, because it can be changed into a prime (1272937) 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 as a sum of consecutive naturals, namely, 318233 + ... + 318236.

2^1272938 is an apocalyptic number.

1272938 is a deficient number, since it is larger than the sum of its proper divisors (636472).

1272938 is an equidigital number, since it uses as much as digits as its factorization.

1272938 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 636471.

The product of its digits is 6048, while the sum is 32.

The square root of 1272938 is about 1128.2455406515. The cubic root of 1272938 is about 108.3766569653.

The spelling of 1272938 in words is "one million, two hundred seventy-two thousand, nine hundred thirty-eight".