1268742 has 8 divisors (see below), whose sum is σ = 2537496. Its totient is φ = 422912.

The previous prime is 1268741. The next prime is 1268747. The reversal of 1268742 is 2478621.

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

1268742 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1268741) 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, 105723 + ... + 105734.

It is an arithmetic number, because the mean of its divisors is an integer number (317187).

2^1268742 is an apocalyptic number.

1268742 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1268742 is a wasteful number, since it uses less digits than its factorization.

1268742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 211462.

The product of its digits is 5376, while the sum is 30.

The square root of 1268742 is about 1126.3844814272. The cubic root of 1268742 is about 108.2574448137.

The spelling of 1268742 in words is "one million, two hundred sixty-eight thousand, seven hundred forty-two".