31342684 has 12 divisors (see below), whose sum is σ = 55154008. Its totient is φ = 15584400.

The previous prime is 31342681. The next prime is 31342687. The reversal of 31342684 is 48624313.

It is an interprime number because it is at equal distance from previous prime (31342681) and next prime (31342687).

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31342681) 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, 20922 + ... + 22369.

Almost surely, 2^31342684 is an apocalyptic number.

It is an amenable number.

31342684 is a deficient number, since it is larger than the sum of its proper divisors (23811324).

31342684 is a wasteful number, since it uses less digits than its factorization.

31342684 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43476 (or 43474 counting only the distinct ones).

The product of its digits is 13824, while the sum is 31.

The square root of 31342684 is about 5598.4537150896. The cubic root of 31342684 is about 315.2913538490.

Adding to 31342684 its reverse (48624313), we get a palindrome (79966997).

The spelling of 31342684 in words is "thirty-one million, three hundred forty-two thousand, six hundred eighty-four".