31042852 has 24 divisors (see below), whose sum is σ = 56046200. Its totient is φ = 15033600.

The previous prime is 31042829. The next prime is 31042853. The reversal of 31042852 is 25824013.

It can be written as a sum of positive squares in 4 ways, for example, as 19927296 + 11115556 = 4464^2 + 3334^2 .

It is not an unprimeable number, because it can be changed into a prime (31042853) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 51352 + ... + 51952.

Almost surely, 2^31042852 is an apocalyptic number.

It is an amenable number.

31042852 is a deficient number, since it is larger than the sum of its proper divisors (25003348).

31042852 is a wasteful number, since it uses less digits than its factorization.

31042852 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 991 (or 989 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 25.

The square root of 31042852 is about 5571.6112570782. The cubic root of 31042852 is about 314.2827453084.

Adding to 31042852 its reverse (25824013), we get a palindrome (56866865).

The spelling of 31042852 in words is "thirty-one million, forty-two thousand, eight hundred fifty-two".