31324342 has 16 divisors (see below), whose sum is σ = 54232992. Its totient is φ = 13291200.

The previous prime is 31324333. The next prime is 31324343. The reversal of 31324342 is 24342313.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31324343) 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 7 ways as a sum of consecutive naturals, for example, 9663 + ... + 12490.

It is an arithmetic number, because the mean of its divisors is an integer number (3389562).

Almost surely, 2^31324342 is an apocalyptic number.

31324342 is a deficient number, since it is larger than the sum of its proper divisors (22908650).

31324342 is a wasteful number, since it uses less digits than its factorization.

31324342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22263.

The product of its digits is 1728, while the sum is 22.

The square root of 31324342 is about 5596.8153444615. The cubic root of 31324342 is about 315.2298381379.

Adding to 31324342 its reverse (24342313), we get a palindrome (55666655).

The spelling of 31324342 in words is "thirty-one million, three hundred twenty-four thousand, three hundred forty-two".