338740443 has 6 divisors (see below), whose sum is σ = 489291764. Its totient is φ = 225826956.

The previous prime is 338740429. The next prime is 338740463. The reversal of 338740443 is 344047833.

It is a happy number.

It is not a de Polignac number, because 338740443 - 2⁴ = 338740427 is a prime.

It is a super-2 number, since 2×338740443² = 229490175447672498, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 338740398 and 338740407.

It is not an unprimeable number, because it can be changed into a prime (338740463) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 18818905 + ... + 18818922.

Almost surely, 2^338740443 is an apocalyptic number.

338740443 is a deficient number, since it is larger than the sum of its proper divisors (150551321).

338740443 is a wasteful number, since it uses less digits than its factorization.

338740443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37637833 (or 37637830 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 36.

The square root of 338740443 is about 18404.9026892293. The cubic root of 338740443 is about 697.0902638436.

The spelling of 338740443 in words is "three hundred thirty-eight million, seven hundred forty thousand, four hundred forty-three".