31042413 has 16 divisors (see below), whose sum is σ = 46085760. Its totient is φ = 20651328.

The previous prime is 31042397. The next prime is 31042421. The reversal of 31042413 is 31424013.

It is not a de Polignac number, because 31042413 - 2⁴ = 31042397 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31042463) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16581 + ... + 18357.

It is an arithmetic number, because the mean of its divisors is an integer number (2880360).

Almost surely, 2^31042413 is an apocalyptic number.

It is an amenable number.

31042413 is a deficient number, since it is larger than the sum of its proper divisors (15043347).

31042413 is a wasteful number, since it uses less digits than its factorization.

31042413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2433 (or 2427 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 31042413 is about 5571.5718607948. The cubic root of 31042413 is about 314.2812637996.

Adding to 31042413 its reverse (31424013), we get a palindrome (62466426).

The spelling of 31042413 in words is "thirty-one million, forty-two thousand, four hundred thirteen".