31044242 has 8 divisors (see below), whose sum is σ = 47329932. Its totient is φ = 15267600.

The previous prime is 31044197. The next prime is 31044259. The reversal of 31044242 is 24244013.

It can be written as a sum of positive squares in 2 ways, for example, as 21613201 + 9431041 = 4649^2 + 3071^2 .

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

It is a super-2 number, since 2×31044242² = 1927489922709128, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 127109 + ... + 127352.

Almost surely, 2^31044242 is an apocalyptic number.

31044242 is a deficient number, since it is larger than the sum of its proper divisors (16285690).

31044242 is a wasteful number, since it uses less digits than its factorization.

31044242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 254524.

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 31044242 is about 5571.7359951814. The cubic root of 31044242 is about 314.2874360984.

Adding to 31044242 its reverse (24244013), we get a palindrome (55288255).

The spelling of 31044242 in words is "thirty-one million, forty-four thousand, two hundred forty-two".