31340367 has 24 divisors (see below), whose sum is σ = 50459760. Its totient is φ = 18627840.

The previous prime is 31340317. The next prime is 31340381. The reversal of 31340367 is 76304313.

It is a happy number.

It is not a de Polignac number, because 31340367 - 2⁶ = 31340303 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 31340367.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31340317) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2484 + ... + 8297.

It is an arithmetic number, because the mean of its divisors is an integer number (2102490).

Almost surely, 2^31340367 is an apocalyptic number.

31340367 is a deficient number, since it is larger than the sum of its proper divisors (19119393).

31340367 is a wasteful number, since it uses less digits than its factorization.

31340367 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10823 (or 10820 counting only the distinct ones).

The product of its (nonzero) digits is 4536, while the sum is 27.

The square root of 31340367 is about 5598.2467791265. The cubic root of 31340367 is about 315.2835843796.

The spelling of 31340367 in words is "thirty-one million, three hundred forty thousand, three hundred sixty-seven".