1338574873 has 2 divisors, whose sum is σ = 1338574874. Its totient is φ = 1338574872.

The previous prime is 1338574859. The next prime is 1338574879. The reversal of 1338574873 is 3784758331.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 681575449 + 656999424 = 26107^2 + 25632^2 .

It is a cyclic number.

It is not a de Polignac number, because 1338574873 - 2⁵ = 1338574841 is a prime.

It is a super-2 number, since 2×1338574873² = 3583565381253932258, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1338574879) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 669287436 + 669287437.

It is an arithmetic number, because the mean of its divisors is an integer number (669287437).

Almost surely, 2^1338574873 is an apocalyptic number.

It is an amenable number.

1338574873 is a deficient number, since it is larger than the sum of its proper divisors (1).

1338574873 is an equidigital number, since it uses as much as digits as its factorization.

1338574873 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1693440, while the sum is 49.

The square root of 1338574873 is about 36586.5395056707. The cubic root of 1338574873 is about 1102.0827957133.

The spelling of 1338574873 in words is "one billion, three hundred thirty-eight million, five hundred seventy-four thousand, eight hundred seventy-three".