338027561 has 4 divisors (see below), whose sum is σ = 339094212. Its totient is φ = 336960912.

The previous prime is 338027549. The next prime is 338027581. The reversal of 338027561 is 165720833.

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

It can be written as a sum of positive squares in 2 ways, for example, as 30691600 + 307335961 = 5540^2 + 17531^2 .

It is a cyclic number.

It is not a de Polignac number, because 338027561 - 2⁶ = 338027497 is a prime.

It is a super-2 number, since 2×338027561² = 228525263991217442, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (338027531) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 532850 + ... + 533483.

It is an arithmetic number, because the mean of its divisors is an integer number (84773553).

Almost surely, 2^338027561 is an apocalyptic number.

It is an amenable number.

338027561 is a deficient number, since it is larger than the sum of its proper divisors (1066651).

338027561 is a wasteful number, since it uses less digits than its factorization.

338027561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1066650.

The product of its (nonzero) digits is 30240, while the sum is 35.

The square root of 338027561 is about 18385.5258559553. The cubic root of 338027561 is about 696.6009097015.

The spelling of 338027561 in words is "three hundred thirty-eight million, twenty-seven thousand, five hundred sixty-one".