31634242 has 8 divisors (see below), whose sum is σ = 47477196. Its totient is φ = 15808512.

The previous prime is 31634227. The next prime is 31634293. The reversal of 31634242 is 24243613.

It can be written as a sum of positive squares in 2 ways, for example, as 29387241 + 2247001 = 5421^2 + 1499^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2338 + ... + 8290.

Almost surely, 2^31634242 is an apocalyptic number.

31634242 is a deficient number, since it is larger than the sum of its proper divisors (15842954).

31634242 is a wasteful number, since it uses less digits than its factorization.

31634242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8612.

The product of its digits is 3456, while the sum is 25.

The square root of 31634242 is about 5624.4325936044. The cubic root of 31634242 is about 316.2659793933.

Adding to 31634242 its reverse (24243613), we get a palindrome (55877855).

The spelling of 31634242 in words is "thirty-one million, six hundred thirty-four thousand, two hundred forty-two".