1272398 has 8 divisors (see below), whose sum is σ = 1927800. Its totient is φ = 629800.

The previous prime is 1272379. The next prime is 1272409. The reversal of 1272398 is 8932721.

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

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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, 2948 + ... + 3351.

It is an arithmetic number, because the mean of its divisors is an integer number (240975).

2^1272398 is an apocalyptic number.

1272398 is a deficient number, since it is larger than the sum of its proper divisors (655402).

1272398 is a wasteful number, since it uses less digits than its factorization.

1272398 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6402.

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

The square root of 1272398 is about 1128.0062056567. The cubic root of 1272398 is about 108.3613297794.

It can be divided in two parts, 12723 and 98, that added together give a palindrome (12821).

The spelling of 1272398 in words is "one million, two hundred seventy-two thousand, three hundred ninety-eight".