1273648 has 20 divisors (see below), whose sum is σ = 2575728. Its totient is φ = 608960.

The previous prime is 1273639. The next prime is 1273663. The reversal of 1273648 is 8463721.

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, 1363 + ... + 2098.

2^1273648 is an apocalyptic number.

It is an amenable number.

1273648 is an abundant number, since it is smaller than the sum of its proper divisors (1302080).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1273648 is a wasteful number, since it uses less digits than its factorization.

1273648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3492 (or 3486 counting only the distinct ones).

The product of its digits is 8064, while the sum is 31.

The square root of 1273648 is about 1128.5601446091. The cubic root of 1273648 is about 108.3968027815.

The spelling of 1273648 in words is "one million, two hundred seventy-three thousand, six hundred forty-eight".