31790241 has 12 divisors (see below), whose sum is σ = 52479232. Its totient is φ = 18165816.

The previous prime is 31790237. The next prime is 31790251. The reversal of 31790241 is 14209713.

It is not a de Polignac number, because 31790241 - 2² = 31790237 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31790251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 252241 + ... + 252366.

Almost surely, 2^31790241 is an apocalyptic number.

It is an amenable number.

31790241 is a deficient number, since it is larger than the sum of its proper divisors (20688991).

31790241 is a wasteful number, since it uses less digits than its factorization.

31790241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 504620 (or 504617 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 27.

The square root of 31790241 is about 5638.2835153972. The cubic root of 31790241 is about 316.7849981896.

Adding to 31790241 its reverse (14209713), we get a palindrome (45999954).

It can be divided in two parts, 3 and 1790241, that added together give a square (1790244 = 1338²).

The spelling of 31790241 in words is "thirty-one million, seven hundred ninety thousand, two hundred forty-one".