1444407 has 4 divisors (see below), whose sum is σ = 1925880. Its totient is φ = 962936.

The previous prime is 1444309. The next prime is 1444411. The reversal of 1444407 is 7044441.

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 1444407 - 2⁷ = 1444279 is a prime.

It is a D-number.

1444407 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1444447) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 240732 + ... + 240737.

It is an arithmetic number, because the mean of its divisors is an integer number (481470).

2^1444407 is an apocalyptic number.

1444407 is a deficient number, since it is larger than the sum of its proper divisors (481473).

1444407 is an equidigital number, since it uses as much as digits as its factorization.

1444407 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 481472.

The product of its (nonzero) digits is 1792, while the sum is 24.

The square root of 1444407 is about 1201.8348472232. The cubic root of 1444407 is about 113.0394046405.

Adding to 1444407 its reverse (7044441), we get a palindrome (8488848).

The spelling of 1444407 in words is "one million, four hundred forty-four thousand, four hundred seven".