31324242 has 24 divisors (see below), whose sum is σ = 63652176. Its totient is φ = 10276728.

The previous prime is 31324201. The next prime is 31324259. The reversal of 31324242 is 24242313.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 26353 + ... + 27515.

It is an arithmetic number, because the mean of its divisors is an integer number (2652174).

Almost surely, 2^31324242 is an apocalyptic number.

31324242 is an abundant number, since it is smaller than the sum of its proper divisors (32327934).

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

31324242 is a wasteful number, since it uses less digits than its factorization.

31324242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1302 (or 1235 counting only the distinct ones).

The product of its digits is 1152, while the sum is 21.

The square root of 31324242 is about 5596.8064108025. The cubic root of 31324242 is about 315.2295026904.

Adding to 31324242 its reverse (24242313), we get a palindrome (55566555).

The spelling of 31324242 in words is "thirty-one million, three hundred twenty-four thousand, two hundred forty-two".