1444421047 has 2 divisors, whose sum is σ = 1444421048. Its totient is φ = 1444421046.

The previous prime is 1444420993. The next prime is 1444421051. The reversal of 1444421047 is 7401244441.

It is a strong prime.

It is an emirp because it is prime and its reverse (7401244441) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1444421047 - 2¹¹ = 1444418999 is a prime.

It is a super-2 number, since 2×1444421047² = 4172704322033152418, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1444421747) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 722210523 + 722210524.

It is an arithmetic number, because the mean of its divisors is an integer number (722210524).

Almost surely, 2^1444421047 is an apocalyptic number.

1444421047 is a deficient number, since it is larger than the sum of its proper divisors (1).

1444421047 is an equidigital number, since it uses as much as digits as its factorization.

1444421047 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 14336, while the sum is 31.

The square root of 1444421047 is about 38005.5396883139. The cubic root of 1444421047 is about 1130.3977107912.

Adding to 1444421047 its reverse (7401244441), we get a palindrome (8845665488).

The spelling of 1444421047 in words is "one billion, four hundred forty-four million, four hundred twenty-one thousand, forty-seven".