338226730381 has 4 divisors (see below), whose sum is σ = 338228050752. Its totient is φ = 338225410012.

The previous prime is 338226730351. The next prime is 338226730423. The reversal of 338226730381 is 183037622833.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 338226730381 - 2¹⁹ = 338226206093 is a prime.

It is a super-2 number, since 2×338226730381² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (338226730351) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 138565 + ... + 834058.

It is an arithmetic number, because the mean of its divisors is an integer number (84557012688).

Almost surely, 2^338226730381 is an apocalyptic number.

It is an amenable number.

338226730381 is a deficient number, since it is larger than the sum of its proper divisors (1320371).

338226730381 is an equidigital number, since it uses as much as digits as its factorization.

338226730381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1320370.

The product of its (nonzero) digits is 870912, while the sum is 46.

The spelling of 338226730381 in words is "three hundred thirty-eight billion, two hundred twenty-six million, seven hundred thirty thousand, three hundred eighty-one".