1244243 has 24 divisors (see below), whose sum is σ = 1698144. Its totient is φ = 887040.

The previous prime is 1244233. The next prime is 1244249. The reversal of 1244243 is 3424421.

It is not a de Polignac number, because 1244243 - 2¹⁶ = 1178707 is a prime.

It is a Smith number, since the sum of its digits (20) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (1244249) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10955 + ... + 11067.

It is an arithmetic number, because the mean of its divisors is an integer number (70756).

2^1244243 is an apocalyptic number.

1244243 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1244243 is a deficient number, since it is larger than the sum of its proper divisors (453901).

1244243 is a wasteful number, since it uses less digits than its factorization.

1244243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155 (or 144 counting only the distinct ones).

The product of its digits is 768, while the sum is 20.

The square root of 1244243 is about 1115.4564088300. The cubic root of 1244243 is about 107.5561055604.

Adding to 1244243 its reverse (3424421), we get a palindrome (4668664).

The spelling of 1244243 in words is "one million, two hundred forty-four thousand, two hundred forty-three".