338531530 has 8 divisors (see below), whose sum is σ = 609356772. Its totient is φ = 135412608.

The previous prime is 338531513. The next prime is 338531539. The reversal of 338531530 is 35135833.

It can be written as a sum of positive squares in 2 ways, for example, as 330403329 + 8128201 = 18177^2 + 2851^2 .

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

It is a super-2 number, since 2×338531530² = 229207193608281800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 338531492 and 338531501.

It is not an unprimeable number, because it can be changed into a prime (338531539) 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 3 ways as a sum of consecutive naturals, for example, 16926567 + ... + 16926586.

Almost surely, 2^338531530 is an apocalyptic number.

338531530 is a deficient number, since it is larger than the sum of its proper divisors (270825242).

338531530 is a wasteful number, since it uses less digits than its factorization.

338531530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33853160.

The product of its (nonzero) digits is 16200, while the sum is 31.

The square root of 338531530 is about 18399.2263424308. The cubic root of 338531530 is about 696.9469277779.

The spelling of 338531530 in words is "three hundred thirty-eight million, five hundred thirty-one thousand, five hundred thirty".