1338763388 has 24 divisors (see below), whose sum is σ = 2391244800. Its totient is φ = 655684848.

The previous prime is 1338763373. The next prime is 1338763399. The reversal of 1338763388 is 8833678331.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23453 + ... + 56811.

It is an arithmetic number, because the mean of its divisors is an integer number (99635200).

Almost surely, 2^1338763388 is an apocalyptic number.

It is an amenable number.

1338763388 is a deficient number, since it is larger than the sum of its proper divisors (1052481412).

1338763388 is a wasteful number, since it uses less digits than its factorization.

1338763388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33569 (or 33567 counting only the distinct ones).

The product of its digits is 1741824, while the sum is 50.

The square root of 1338763388 is about 36589.1157039904. The cubic root of 1338763388 is about 1102.1345296856.

The spelling of 1338763388 in words is "one billion, three hundred thirty-eight million, seven hundred sixty-three thousand, three hundred eighty-eight".