1339340377 has 2 divisors, whose sum is σ = 1339340378. Its totient is φ = 1339340376.

The previous prime is 1339340363. The next prime is 1339340383. The reversal of 1339340377 is 7730439331.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1268713161 + 70627216 = 35619^2 + 8404^2 .

It is an emirp because it is prime and its reverse (7730439331) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1339340377 is a prime.

It is not a weakly prime, because it can be changed into another prime (1339340777) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 669670188 + 669670189.

It is an arithmetic number, because the mean of its divisors is an integer number (669670189).

Almost surely, 2^1339340377 is an apocalyptic number.

It is an amenable number.

1339340377 is a deficient number, since it is larger than the sum of its proper divisors (1).

1339340377 is an equidigital number, since it uses as much as digits as its factorization.

1339340377 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 142884, while the sum is 40.

The square root of 1339340377 is about 36596.9995628057. Note that the first 3 decimals coincide. The cubic root of 1339340377 is about 1102.2928419933.

The spelling of 1339340377 in words is "one billion, three hundred thirty-nine million, three hundred forty thousand, three hundred seventy-seven".