338842513 has 2 divisors, whose sum is σ = 338842514. Its totient is φ = 338842512.

The previous prime is 338842501. The next prime is 338842519. The reversal of 338842513 is 315248833.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 260112384 + 78730129 = 16128^2 + 8873^2 .

It is a cyclic number.

It is not a de Polignac number, because 338842513 - 2⁹ = 338842001 is a prime.

It is a super-2 number, since 2×338842513² = 229628497232310338, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (338842519) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 169421256 + 169421257.

It is an arithmetic number, because the mean of its divisors is an integer number (169421257).

Almost surely, 2^338842513 is an apocalyptic number.

It is an amenable number.

338842513 is a deficient number, since it is larger than the sum of its proper divisors (1).

338842513 is an equidigital number, since it uses as much as digits as its factorization.

338842513 is an evil number, because the sum of its binary digits is even.

The product of its digits is 69120, while the sum is 37.

The square root of 338842513 is about 18407.6753828396. The cubic root of 338842513 is about 697.1602730589.

The spelling of 338842513 in words is "three hundred thirty-eight million, eight hundred forty-two thousand, five hundred thirteen".