338506738 has 4 divisors (see below), whose sum is σ = 507760110. Its totient is φ = 169253368.

The previous prime is 338506733. The next prime is 338506739. The reversal of 338506738 is 837605833.

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

It can be written as a sum of positive squares in only one way, i.e., 254179249 + 84327489 = 15943^2 + 9183^2 .

It is a super-2 number, since 2×338506738² = 229173623342801288, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 338506694 and 338506703.

It is not an unprimeable number, because it can be changed into a prime (338506733) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 84626683 + ... + 84626686.

Almost surely, 2^338506738 is an apocalyptic number.

338506738 is a deficient number, since it is larger than the sum of its proper divisors (169253372).

338506738 is a wasteful number, since it uses less digits than its factorization.

338506738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 169253371.

The product of its (nonzero) digits is 362880, while the sum is 43.

The square root of 338506738 is about 18398.5526061155. The cubic root of 338506738 is about 696.9299139712.

The spelling of 338506738 in words is "three hundred thirty-eight million, five hundred six thousand, seven hundred thirty-eight".