1338266747 has 8 divisors (see below), whose sum is σ = 1342757376. Its totient is φ = 1333784232.

The previous prime is 1338266651. The next prime is 1338266819. The reversal of 1338266747 is 7476628331.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1338266747 - 2⁸ = 1338266491 is a prime.

It is a super-2 number, since 2×1338266747² = 3581915772251924018, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1338266047) 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 7 ways as a sum of consecutive naturals, for example, 545678 + ... + 548124.

It is an arithmetic number, because the mean of its divisors is an integer number (167844672).

Almost surely, 2^1338266747 is an apocalyptic number.

1338266747 is a deficient number, since it is larger than the sum of its proper divisors (4490629).

1338266747 is a wasteful number, since it uses less digits than its factorization.

1338266747 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4057.

The product of its digits is 1016064, while the sum is 47.

The square root of 1338266747 is about 36582.3283430675. The cubic root of 1338266747 is about 1101.9982265621.

The spelling of 1338266747 in words is "one billion, three hundred thirty-eight million, two hundred sixty-six thousand, seven hundred forty-seven".