31214422 has 8 divisors (see below), whose sum is σ = 47615400. Its totient is φ = 15342624.

The previous prime is 31214419. The next prime is 31214423. The reversal of 31214422 is 22441213.

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 31214422.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31214423) 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, 132147 + ... + 132382.

It is an arithmetic number, because the mean of its divisors is an integer number (5951925).

Almost surely, 2^31214422 is an apocalyptic number.

31214422 is a deficient number, since it is larger than the sum of its proper divisors (16400978).

31214422 is a wasteful number, since it uses less digits than its factorization.

31214422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 264590.

The product of its digits is 384, while the sum is 19.

The square root of 31214422 is about 5586.9868444449. The cubic root of 31214422 is about 314.8606824922.

Adding to 31214422 its reverse (22441213), we get a palindrome (53655635).

The spelling of 31214422 in words is "thirty-one million, two hundred fourteen thousand, four hundred twenty-two".