31168842 has 8 divisors (see below), whose sum is σ = 62337696. Its totient is φ = 10389612.

The previous prime is 31168831. The next prime is 31168847. The reversal of 31168842 is 24886113.

It is a sphenic number, since it is the product of 3 distinct primes.

31168842 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (31168847) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2597398 + ... + 2597409.

It is an arithmetic number, because the mean of its divisors is an integer number (7792212).

Almost surely, 2^31168842 is an apocalyptic number.

31168842 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31168842 is a wasteful number, since it uses less digits than its factorization.

31168842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5194812.

The product of its digits is 9216, while the sum is 33.

The square root of 31168842 is about 5582.9062324205. The cubic root of 31168842 is about 314.7073522893.

The spelling of 31168842 in words is "thirty-one million, one hundred sixty-eight thousand, eight hundred forty-two".