1338374293 has 2 divisors, whose sum is σ = 1338374294. Its totient is φ = 1338374292.

The previous prime is 1338374287. The next prime is 1338374309. The reversal of 1338374293 is 3924738331.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 708464689 + 629909604 = 26617^2 + 25098^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1338374293 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1338374243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 669187146 + 669187147.

It is an arithmetic number, because the mean of its divisors is an integer number (669187147).

Almost surely, 2^1338374293 is an apocalyptic number.

It is an amenable number.

1338374293 is a deficient number, since it is larger than the sum of its proper divisors (1).

1338374293 is an equidigital number, since it uses as much as digits as its factorization.

1338374293 is an evil number, because the sum of its binary digits is even.

The product of its digits is 326592, while the sum is 43.

The square root of 1338374293 is about 36583.7982309109. The cubic root of 1338374293 is about 1102.0277454222.

The spelling of 1338374293 in words is "one billion, three hundred thirty-eight million, three hundred seventy-four thousand, two hundred ninety-three".