31424468 has 12 divisors (see below), whose sum is σ = 55036212. Its totient is φ = 15699840.

The previous prime is 31424467. The next prime is 31424479. The reversal of 31424468 is 86442413.

It can be written as a sum of positive squares in 2 ways, for example, as 21362884 + 10061584 = 4622^2 + 3172^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31424467) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4898 + ... + 9318.

It is an arithmetic number, because the mean of its divisors is an integer number (4586351).

Almost surely, 2^31424468 is an apocalyptic number.

It is an amenable number.

31424468 is a deficient number, since it is larger than the sum of its proper divisors (23611744).

31424468 is a wasteful number, since it uses less digits than its factorization.

31424468 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6202 (or 6200 counting only the distinct ones).

The product of its digits is 18432, while the sum is 32.

The square root of 31424468 is about 5605.7531162191. The cubic root of 31424468 is about 315.5653507249.

The spelling of 31424468 in words is "thirty-one million, four hundred twenty-four thousand, four hundred sixty-eight".