1338835263 has 4 divisors (see below), whose sum is σ = 1785113688. Its totient is φ = 892556840.

The previous prime is 1338835243. The next prime is 1338835271. The reversal of 1338835263 is 3625388331.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3625388331 = 3 ⋅1208462777.

It is a cyclic number.

It is not a de Polignac number, because 1338835263 - 2²¹ = 1336738111 is a prime.

It is a super-2 number, since 2×1338835263² = 3584959722904558338, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1338835243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 223139208 + ... + 223139213.

It is an arithmetic number, because the mean of its divisors is an integer number (446278422).

Almost surely, 2^1338835263 is an apocalyptic number.

1338835263 is a deficient number, since it is larger than the sum of its proper divisors (446278425).

1338835263 is an equidigital number, since it uses as much as digits as its factorization.

1338835263 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 446278424.

The product of its digits is 311040, while the sum is 42.

The square root of 1338835263 is about 36590.0978818040. The cubic root of 1338835263 is about 1102.1542529870.

The spelling of 1338835263 in words is "one billion, three hundred thirty-eight million, eight hundred thirty-five thousand, two hundred sixty-three".