1444257 has 16 divisors (see below), whose sum is σ = 2160000. Its totient is φ = 953712.

The previous prime is 1444249. The next prime is 1444271. The reversal of 1444257 is 7524441.

It is not a de Polignac number, because 1444257 - 2³ = 1444249 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 1444257.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1444217) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3844 + ... + 4202.

It is an arithmetic number, because the mean of its divisors is an integer number (135000).

2^1444257 is an apocalyptic number.

It is an amenable number.

1444257 is a deficient number, since it is larger than the sum of its proper divisors (715743).

1444257 is a wasteful number, since it uses less digits than its factorization.

1444257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 517 (or 511 counting only the distinct ones).

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

The square root of 1444257 is about 1201.7724410220. The cubic root of 1444257 is about 113.0354915012.

Adding to 1444257 its reverse (7524441), we get a palindrome (8968698).

The spelling of 1444257 in words is "one million, four hundred forty-four thousand, two hundred fifty-seven".