1243748 has 24 divisors (see below), whose sum is σ = 2479680. Its totient is φ = 540320.

The previous prime is 1243747. The next prime is 1243783. The reversal of 1243748 is 8473421.

It is a self number, because there is not a number n which added to its sum of digits gives 1243748.

It is not an unprimeable number, because it can be changed into a prime (1243741) 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 in 7 ways as a sum of consecutive naturals, for example, 398 + ... + 1626.

It is an arithmetic number, because the mean of its divisors is an integer number (103320).

2^1243748 is an apocalyptic number.

It is an amenable number.

1243748 is a deficient number, since it is larger than the sum of its proper divisors (1235932).

1243748 is a wasteful number, since it uses less digits than its factorization.

1243748 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1267 (or 1265 counting only the distinct ones).

The product of its digits is 5376, while the sum is 29.

The square root of 1243748 is about 1115.2345044877. The cubic root of 1243748 is about 107.5418405725.

It can be divided in two parts, 1243 and 748, that added together give a palindrome (1991).

The spelling of 1243748 in words is "one million, two hundred forty-three thousand, seven hundred forty-eight".