338631 has 4 divisors (see below), whose sum is σ = 451512. Its totient is φ = 225752.

The previous prime is 338609. The next prime is 338659. The reversal of 338631 is 136833.

338631 is an esthetic number in base 9, because in such base its adjacent digits differ by 1.

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

It is a cyclic number.

It is not a de Polignac number, because 338631 - 2⁶ = 338567 is a prime.

It is a super-2 number, since 2×338631² = 229341908322, which contains 22 as substring.

It is a D-number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (338231) 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, 56436 + ... + 56441.

It is an arithmetic number, because the mean of its divisors is an integer number (112878).

2³³⁸⁶³¹ is an apocalyptic number.

338631 is a deficient number, since it is larger than the sum of its proper divisors (112881).

338631 is a wasteful number, since it uses less digits than its factorization.

338631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112880.

The product of its digits is 1296, while the sum is 24.

The square root of 338631 is about 581.9200976079. The cubic root of 338631 is about 69.7015181905.

It can be divided in two parts, 338 and 631, that added together give a palindrome (969).

The spelling of 338631 in words is "three hundred thirty-eight thousand, six hundred thirty-one".