31942422 has 48 divisors (see below), whose sum is σ = 74872512. Its totient is φ = 9803520.

The previous prime is 31942399. The next prime is 31942441. The reversal of 31942422 is 22424913.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13272 + ... + 15492.

It is an arithmetic number, because the mean of its divisors is an integer number (1559844).

Almost surely, 2^31942422 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 31942422, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37436256).

31942422 is an abundant number, since it is smaller than the sum of its proper divisors (42930090).

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

31942422 is a wasteful number, since it uses less digits than its factorization.

31942422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2293 (or 2290 counting only the distinct ones).

The product of its digits is 3456, while the sum is 27.

The square root of 31942422 is about 5651.7627338734. The cubic root of 31942422 is about 317.2896807034.

The spelling of 31942422 in words is "thirty-one million, nine hundred forty-two thousand, four hundred twenty-two".