1338686750 has 32 divisors (see below), whose sum is σ = 2564321760. Its totient is φ = 523017600.

The previous prime is 1338686747. The next prime is 1338686803. The reversal of 1338686750 is 576868331.

It is a happy number.

It is a Smith number, since the sum of its digits (47) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 1338686695 and 1338686704.

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 15 ways as a sum of consecutive naturals, for example, 51515 + ... + 73014.

It is an arithmetic number, because the mean of its divisors is an integer number (80135055).

Almost surely, 2^1338686750 is an apocalyptic number.

1338686750 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1338686750 is a deficient number, since it is larger than the sum of its proper divisors (1225635010).

1338686750 is a wasteful number, since it uses less digits than its factorization.

1338686750 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124589 (or 124579 counting only the distinct ones).

The product of its (nonzero) digits is 725760, while the sum is 47.

The square root of 1338686750 is about 36588.0684103438. The cubic root of 1338686750 is about 1102.1134985861.

The spelling of 1338686750 in words is "one billion, three hundred thirty-eight million, six hundred eighty-six thousand, seven hundred fifty".