1338826765 has 8 divisors (see below), whose sum is σ = 1629220608. Its totient is φ = 1055975760.

The previous prime is 1338826747. The next prime is 1338826771. The reversal of 1338826765 is 5676288331.

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

It is not a de Polignac number, because 1338826765 - 2⁷ = 1338826637 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1885317 + ... + 1886026.

It is an arithmetic number, because the mean of its divisors is an integer number (203652576).

Almost surely, 2^1338826765 is an apocalyptic number.

It is an amenable number.

1338826765 is a deficient number, since it is larger than the sum of its proper divisors (290393843).

1338826765 is an equidigital number, since it uses as much as digits as its factorization.

1338826765 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3771419.

The product of its digits is 1451520, while the sum is 49.

The square root of 1338826765 is about 36589.9817573062. The cubic root of 1338826765 is about 1102.1519210779.

The spelling of 1338826765 in words is "one billion, three hundred thirty-eight million, eight hundred twenty-six thousand, seven hundred sixty-five".