1244457 has 8 divisors (see below), whose sum is σ = 1843680. Its totient is φ = 829620.

The previous prime is 1244447. The next prime is 1244459. The reversal of 1244457 is 7544421.

It is not a de Polignac number, because 1244457 - 2⁶ = 1244393 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 46091 = 1244457 / (1 + 2 + 4 + 4 + 4 + 5 + 7).

It is a plaindrome in base 10.

It is a self number, because there is not a number n which added to its sum of digits gives 1244457.

It is not an unprimeable number, because it can be changed into a prime (1244459) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23019 + ... + 23072.

It is an arithmetic number, because the mean of its divisors is an integer number (230460).

2^1244457 is an apocalyptic number.

It is an amenable number.

1244457 is a deficient number, since it is larger than the sum of its proper divisors (599223).

1244457 is an equidigital number, since it uses as much as digits as its factorization.

1244457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46100 (or 46094 counting only the distinct ones).

The product of its digits is 4480, while the sum is 27.

The square root of 1244457 is about 1115.5523295659. The cubic root of 1244457 is about 107.5622714747.

Adding to 1244457 its reverse (7544421), we get a palindrome (8788878).

The spelling of 1244457 in words is "one million, two hundred forty-four thousand, four hundred fifty-seven".