1444450457 has 8 divisors (see below), whose sum is σ = 1464877440. Its totient is φ = 1424077200.

The previous prime is 1444450421. The next prime is 1444450463. The reversal of 1444450457 is 7540544441.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1444450457 - 2²⁴ = 1427673241 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1444450457.

It is not an unprimeable number, because it can be changed into a prime (1444450477) 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, 42338 + ... + 68420.

It is an arithmetic number, because the mean of its divisors is an integer number (183109680).

Almost surely, 2^1444450457 is an apocalyptic number.

It is an amenable number.

1444450457 is a deficient number, since it is larger than the sum of its proper divisors (20426983).

1444450457 is an equidigital number, since it uses as much as digits as its factorization.

1444450457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26863.

The product of its (nonzero) digits is 179200, while the sum is 38.

The square root of 1444450457 is about 38005.9266036233. The cubic root of 1444450457 is about 1130.4053827857.

Adding to 1444450457 its reverse (7540544441), we get a palindrome (8984994898).

The spelling of 1444450457 in words is "one billion, four hundred forty-four million, four hundred fifty thousand, four hundred fifty-seven".