31043452 has 12 divisors (see below), whose sum is σ = 59264856. Its totient is φ = 14110640.

The previous prime is 31043447. The next prime is 31043459. The reversal of 31043452 is 25434013.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31043459) 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, 352723 + ... + 352810.

It is an arithmetic number, because the mean of its divisors is an integer number (4938738).

Almost surely, 2^31043452 is an apocalyptic number.

It is an amenable number.

31043452 is a deficient number, since it is larger than the sum of its proper divisors (28221404).

31043452 is a wasteful number, since it uses less digits than its factorization.

31043452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 705548 (or 705546 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 31043452 is about 5571.6651012063. The cubic root of 31043452 is about 314.2847701270.

Adding to 31043452 its reverse (25434013), we get a palindrome (56477465).

It can be divided in two parts, 3104 and 3452, that added together give a palindrome (6556).

The spelling of 31043452 in words is "thirty-one million, forty-three thousand, four hundred fifty-two".