1424403257 has 2 divisors, whose sum is σ = 1424403258. Its totient is φ = 1424403256.

The previous prime is 1424403203. The next prime is 1424403301. The reversal of 1424403257 is 7523044241.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1412181241 + 12222016 = 37579^2 + 3496^2 .

It is an emirp because it is prime and its reverse (7523044241) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1424403257 - 2¹² = 1424399161 is a prime.

It is not a weakly prime, because it can be changed into another prime (1424406257) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 712201628 + 712201629.

It is an arithmetic number, because the mean of its divisors is an integer number (712201629).

Almost surely, 2^1424403257 is an apocalyptic number.

It is an amenable number.

1424403257 is a deficient number, since it is larger than the sum of its proper divisors (1).

1424403257 is an equidigital number, since it uses as much as digits as its factorization.

1424403257 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 26880, while the sum is 32.

The square root of 1424403257 is about 37741.2672945676. The cubic root of 1424403257 is about 1125.1514547039.

Adding to 1424403257 its reverse (7523044241), we get a palindrome (8947447498).

The spelling of 1424403257 in words is "one billion, four hundred twenty-four million, four hundred three thousand, two hundred fifty-seven".