31996022 has 8 divisors (see below), whose sum is σ = 48047256. Its totient is φ = 15980272.

The previous prime is 31996021. The next prime is 31996033. The reversal of 31996022 is 22069913.

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

It is a self number, because there is not a number n which added to its sum of digits gives 31996022.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31996021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6488 + ... + 10299.

It is an arithmetic number, because the mean of its divisors is an integer number (6005907).

Almost surely, 2^31996022 is an apocalyptic number.

31996022 is a deficient number, since it is larger than the sum of its proper divisors (16051234).

31996022 is a wasteful number, since it uses less digits than its factorization.

31996022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17742.

The product of its (nonzero) digits is 5832, while the sum is 32.

The square root of 31996022 is about 5656.5026297174. The cubic root of 31996022 is about 317.4670542622.

The spelling of 31996022 in words is "thirty-one million, nine hundred ninety-six thousand, twenty-two".