1244431 has 4 divisors (see below), whose sum is σ = 1261552. Its totient is φ = 1227312.

The previous prime is 1244429. The next prime is 1244437. The reversal of 1244431 is 1344421.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1244431 - 2¹ = 1244429 is a prime.

It is a super-2 number, since 2×1244431² = 3097217027522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1244399 and 1244408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1244437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8451 + ... + 8596.

It is an arithmetic number, because the mean of its divisors is an integer number (315388).

2^1244431 is an apocalyptic number.

1244431 is a deficient number, since it is larger than the sum of its proper divisors (17121).

1244431 is an equidigital number, since it uses as much as digits as its factorization.

1244431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17120.

The product of its digits is 384, while the sum is 19.

The square root of 1244431 is about 1115.5406760849. The cubic root of 1244431 is about 107.5615223826.

Adding to 1244431 its reverse (1344421), we get a palindrome (2588852).

The spelling of 1244431 in words is "one million, two hundred forty-four thousand, four hundred thirty-one".