1338366829 has 2 divisors, whose sum is σ = 1338366830. Its totient is φ = 1338366828.

The previous prime is 1338366817. The next prime is 1338366839. The reversal of 1338366829 is 9286638331.

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., 1267217604 + 71149225 = 35598^2 + 8435^2 .

It is a cyclic number.

It is not a de Polignac number, because 1338366829 - 2¹⁷ = 1338235757 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1338366839) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 669183414 + 669183415.

It is an arithmetic number, because the mean of its divisors is an integer number (669183415).

Almost surely, 2^1338366829 is an apocalyptic number.

It is an amenable number.

1338366829 is a deficient number, since it is larger than the sum of its proper divisors (1).

1338366829 is an equidigital number, since it uses as much as digits as its factorization.

1338366829 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1119744, while the sum is 49.

The square root of 1338366829 is about 36583.6962183976. The cubic root of 1338366829 is about 1102.0256967799.

The spelling of 1338366829 in words is "one billion, three hundred thirty-eight million, three hundred sixty-six thousand, eight hundred twenty-nine".