31241424 has 20 divisors (see below), whose sum is σ = 80707136. Its totient is φ = 10413792.

The previous prime is 31241411. The next prime is 31241443. The reversal of 31241424 is 42414213.

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 31241424.

It is a congruent number.

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, 325384 + ... + 325479.

Almost surely, 2^31241424 is an apocalyptic number.

It is an amenable number.

31241424 is an abundant number, since it is smaller than the sum of its proper divisors (49465712).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31241424 is a wasteful number, since it uses less digits than its factorization.

31241424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 650874 (or 650868 counting only the distinct ones).

The product of its digits is 768, while the sum is 21.

The square root of 31241424 is about 5589.4028303567. The cubic root of 31241424 is about 314.9514462831.

Adding to 31241424 its reverse (42414213), we get a palindrome (73655637).

The spelling of 31241424 in words is "thirty-one million, two hundred forty-one thousand, four hundred twenty-four".