338520057 has 4 divisors (see below), whose sum is σ = 451360080. Its totient is φ = 225680036.

The previous prime is 338520047. The next prime is 338520157. The reversal of 338520057 is 750025833.

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.

It is a cyclic number.

It is not a de Polignac number, because 338520057 - 2⁴ = 338520041 is a prime.

It is a super-2 number, since 2×338520057² = 229191657982566498, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (338520047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 56420007 + ... + 56420012.

It is an arithmetic number, because the mean of its divisors is an integer number (112840020).

Almost surely, 2^338520057 is an apocalyptic number.

It is an amenable number.

338520057 is a deficient number, since it is larger than the sum of its proper divisors (112840023).

338520057 is a wasteful number, since it uses less digits than its factorization.

338520057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112840022.

The product of its (nonzero) digits is 25200, while the sum is 33.

The square root of 338520057 is about 18398.9145603756. The cubic root of 338520057 is about 696.9390543976.

The spelling of 338520057 in words is "three hundred thirty-eight million, five hundred twenty thousand, fifty-seven".