1248742 has 16 divisors (see below), whose sum is σ = 2110464. Its totient is φ = 549000.

The previous prime is 1248721. The next prime is 1248757. The reversal of 1248742 is 2478421.

It is a self number, because there is not a number n which added to its sum of digits gives 1248742.

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 7 ways as a sum of consecutive naturals, for example, 234 + ... + 1597.

It is an arithmetic number, because the mean of its divisors is an integer number (131904).

2^1248742 is an apocalyptic number.

1248742 is a deficient number, since it is larger than the sum of its proper divisors (861722).

1248742 is a wasteful number, since it uses less digits than its factorization.

1248742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1875.

The product of its digits is 3584, while the sum is 28.

The square root of 1248742 is about 1117.4712524267. The cubic root of 1248742 is about 107.6855853208.

The spelling of 1248742 in words is "one million, two hundred forty-eight thousand, seven hundred forty-two".