1444670407 has 4 divisors (see below), whose sum is σ = 1453321296. Its totient is φ = 1436019520.

The previous prime is 1444670389. The next prime is 1444670417. The reversal of 1444670407 is 7040764441.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7040764441 = 1831 ⋅3845311.

It is a cyclic number.

It is not a de Polignac number, because 1444670407 - 2¹¹ = 1444668359 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1444670417) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4325194 + ... + 4325527.

It is an arithmetic number, because the mean of its divisors is an integer number (363330324).

Almost surely, 2^1444670407 is an apocalyptic number.

1444670407 is a deficient number, since it is larger than the sum of its proper divisors (8650889).

1444670407 is an equidigital number, since it uses as much as digits as its factorization.

1444670407 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8650888.

The product of its (nonzero) digits is 75264, while the sum is 37.

The square root of 1444670407 is about 38008.8201211245. The cubic root of 1444670407 is about 1130.4627564034.

The spelling of 1444670407 in words is "one billion, four hundred forty-four million, six hundred seventy thousand, four hundred seven".