338813765 has 4 divisors (see below), whose sum is σ = 406576524. Its totient is φ = 271051008.

The previous prime is 338813749. The next prime is 338813779. The reversal of 338813765 is 567318833.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 234487969 + 104325796 = 15313^2 + 10214^2 .

It is a cyclic number.

It is not a de Polignac number, because 338813765 - 2⁴ = 338813749 is a prime.

It is a super-2 number, since 2×338813765² = 229589534706950450, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33881372 + ... + 33881381.

It is an arithmetic number, because the mean of its divisors is an integer number (101644131).

Almost surely, 2^338813765 is an apocalyptic number.

It is an amenable number.

338813765 is a deficient number, since it is larger than the sum of its proper divisors (67762759).

338813765 is an equidigital number, since it uses as much as digits as its factorization.

338813765 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67762758.

The product of its digits is 362880, while the sum is 44.

The square root of 338813765 is about 18406.8944963565. The cubic root of 338813765 is about 697.1405563965.

The spelling of 338813765 in words is "three hundred thirty-eight million, eight hundred thirteen thousand, seven hundred sixty-five".