1234444457 has 2 divisors, whose sum is σ = 1234444458. Its totient is φ = 1234444456.

The previous prime is 1234444451. The next prime is 1234444483. The reversal of 1234444457 is 7544444321.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1220524096 + 13920361 = 34936^2 + 3731^2 .

It is an emirp because it is prime and its reverse (7544444321) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1234444457 - 2¹⁶ = 1234378921 is a prime.

It is a super-3 number, since 3×1234444457³ (a number of 28 digits) contains 333 as substring.

It is a plaindrome in base 10.

It is a self number, because there is not a number n which added to its sum of digits gives 1234444457.

It is not a weakly prime, because it can be changed into another prime (1234444451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 617222228 + 617222229.

It is an arithmetic number, because the mean of its divisors is an integer number (617222229).

Almost surely, 2^1234444457 is an apocalyptic number.

It is an amenable number.

1234444457 is a deficient number, since it is larger than the sum of its proper divisors (1).

1234444457 is an equidigital number, since it uses as much as digits as its factorization.

1234444457 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 215040, while the sum is 38.

The square root of 1234444457 is about 35134.6617601479. The cubic root of 1234444457 is about 1072.7302264739.

Adding to 1234444457 its reverse (7544444321), we get a palindrome (8778888778).

The spelling of 1234444457 in words is "one billion, two hundred thirty-four million, four hundred forty-four thousand, four hundred fifty-seven".