31344424 has 8 divisors (see below), whose sum is σ = 58770810. Its totient is φ = 15672208.

The previous prime is 31344419. The next prime is 31344431. The reversal of 31344424 is 42444313.

It can be written as a sum of positive squares in only one way, i.e., 21622500 + 9721924 = 4650^2 + 3118^2 .

It is a tau number, because it is divible by the number of its divisors (8).

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 as a sum of consecutive naturals, namely, 1959019 + ... + 1959034.

Almost surely, 2^31344424 is an apocalyptic number.

It is an amenable number.

31344424 is a deficient number, since it is larger than the sum of its proper divisors (27426386).

31344424 is a wasteful number, since it uses less digits than its factorization.

31344424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3918059 (or 3918055 counting only the distinct ones).

The product of its digits is 4608, while the sum is 25.

The square root of 31344424 is about 5598.6091129851. The cubic root of 31344424 is about 315.2971882440.

Adding to 31344424 its reverse (42444313), we get a palindrome (73788737).

The spelling of 31344424 in words is "thirty-one million, three hundred forty-four thousand, four hundred twenty-four".