1243744 has 12 divisors (see below), whose sum is σ = 2448684. Its totient is φ = 621856.

The previous prime is 1243741. The next prime is 1243747. The reversal of 1243744 is 4473421.

It is an interprime number because it is at equal distance from previous prime (1243741) and next prime (1243747).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1243741) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19402 + ... + 19465.

It is an arithmetic number, because the mean of its divisors is an integer number (204057).

2^1243744 is an apocalyptic number.

It is an amenable number.

1243744 is a deficient number, since it is larger than the sum of its proper divisors (1204940).

1243744 is an equidigital number, since it uses as much as digits as its factorization.

1243744 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38877 (or 38869 counting only the distinct ones).

The product of its digits is 2688, while the sum is 25.

The square root of 1243744 is about 1115.2327111415. The cubic root of 1243744 is about 107.5417252844.

The spelling of 1243744 in words is "one million, two hundred forty-three thousand, seven hundred forty-four".