338487331 has 16 divisors (see below), whose sum is σ = 420505344. Its totient is φ = 265303584.

The previous prime is 338487329. The next prime is 338487341. The reversal of 338487331 is 133784833.

It is a happy number.

It is not a de Polignac number, because 338487331 - 2¹ = 338487329 is a prime.

It is a super-2 number, since 2×338487331² = 229147346495007122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (338487341) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7645 + ... + 27118.

It is an arithmetic number, because the mean of its divisors is an integer number (26281584).

Almost surely, 2^338487331 is an apocalyptic number.

338487331 is a deficient number, since it is larger than the sum of its proper divisors (82018013).

338487331 is a wasteful number, since it uses less digits than its factorization.

338487331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34890.

The product of its digits is 145152, while the sum is 40.

The square root of 338487331 is about 18398.0251929385. The cubic root of 338487331 is about 696.9165951055.

The spelling of 338487331 in words is "three hundred thirty-eight million, four hundred eighty-seven thousand, three hundred thirty-one".