1394348369 has 2 divisors, whose sum is σ = 1394348370. Its totient is φ = 1394348368.

The previous prime is 1394348317. The next prime is 1394348419. The reversal of 1394348369 is 9638434931.

It is an a-pointer prime, because the next prime (1394348419) can be obtained adding 1394348369 to its sum of digits (50).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 776179600 + 618168769 = 27860^2 + 24863^2 .

It is a cyclic number.

It is not a de Polignac number, because 1394348369 - 2²⁰ = 1393299793 is a prime.

It is a super-2 number, since 2×1394348369² = 3888414748265920322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1394348069) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 697174184 + 697174185.

It is an arithmetic number, because the mean of its divisors is an integer number (697174185).

Almost surely, 2^1394348369 is an apocalyptic number.

It is an amenable number.

1394348369 is a deficient number, since it is larger than the sum of its proper divisors (1).

1394348369 is an equidigital number, since it uses as much as digits as its factorization.

1394348369 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1679616, while the sum is 50.

The square root of 1394348369 is about 37340.9743981059. The cubic root of 1394348369 is about 1117.1815744986.

The spelling of 1394348369 in words is "one billion, three hundred ninety-four million, three hundred forty-eight thousand, three hundred sixty-nine".