31068368 has 20 divisors (see below), whose sum is σ = 60512868. Its totient is φ = 15452160.

The previous prime is 31068361. The next prime is 31068371. The reversal of 31068368 is 86386013.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 12475024 + 18593344 = 3532^2 + 4312^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31068361) 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, 1943 + ... + 8118.

Almost surely, 2^31068368 is an apocalyptic number.

It is an amenable number.

31068368 is a deficient number, since it is larger than the sum of its proper divisors (29444500).

31068368 is a wasteful number, since it uses less digits than its factorization.

31068368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10262 (or 10256 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 35.

The square root of 31068368 is about 5573.9006090888. The cubic root of 31068368 is about 314.3688310668.

The spelling of 31068368 in words is "thirty-one million, sixty-eight thousand, three hundred sixty-eight".