1439414393 has 2 divisors, whose sum is σ = 1439414394. Its totient is φ = 1439414392.

The previous prime is 1439414341. The next prime is 1439414401. The reversal of 1439414393 is 3934149341.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 876633664 + 562780729 = 29608^2 + 23723^2 .

It is an emirp because it is prime and its reverse (3934149341) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1439414393 - 2⁶ = 1439414329 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1439414393.

It is not a weakly prime, because it can be changed into another prime (1439414323) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 719707196 + 719707197.

It is an arithmetic number, because the mean of its divisors is an integer number (719707197).

Almost surely, 2^1439414393 is an apocalyptic number.

It is an amenable number.

1439414393 is a deficient number, since it is larger than the sum of its proper divisors (1).

1439414393 is an equidigital number, since it uses as much as digits as its factorization.

1439414393 is an evil number, because the sum of its binary digits is even.

The product of its digits is 139968, while the sum is 41.

The square root of 1439414393 is about 37939.6150876627. The cubic root of 1439414393 is about 1129.0901368780.

The spelling of 1439414393 in words is "one billion, four hundred thirty-nine million, four hundred fourteen thousand, three hundred ninety-three".