31424324 has 12 divisors (see below), whose sum is σ = 55051500. Its totient is φ = 15695328.

The previous prime is 31424321. The next prime is 31424329. The reversal of 31424324 is 42342413.

It can be written as a sum of positive squares in 2 ways, for example, as 18232900 + 13191424 = 4270^2 + 3632^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 31424324.

It is not an unprimeable number, because it can be changed into a prime (31424321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 602 + ... + 7950.

It is an arithmetic number, because the mean of its divisors is an integer number (4587625).

Almost surely, 2^31424324 is an apocalyptic number.

It is an amenable number.

31424324 is a deficient number, since it is larger than the sum of its proper divisors (23627176).

31424324 is a wasteful number, since it uses less digits than its factorization.

31424324 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8422 (or 8420 counting only the distinct ones).

The product of its digits is 2304, while the sum is 23.

The square root of 31424324 is about 5605.7402722566. The cubic root of 31424324 is about 315.5648687069.

Adding to 31424324 its reverse (42342413), we get a palindrome (73766737).

The spelling of 31424324 in words is "thirty-one million, four hundred twenty-four thousand, three hundred twenty-four".