31226226 has 32 divisors (see below), whose sum is σ = 66106368. Its totient is φ = 9812880.

The previous prime is 31226219. The next prime is 31226227. The reversal of 31226226 is 62262213.

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 31226196 and 31226205.

It is not an unprimeable number, because it can be changed into a prime (31226227) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8205 + ... + 11391.

It is an arithmetic number, because the mean of its divisors is an integer number (2065824).

Almost surely, 2^31226226 is an apocalyptic number.

31226226 is an abundant number, since it is smaller than the sum of its proper divisors (34880142).

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

31226226 is a wasteful number, since it uses less digits than its factorization.

31226226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3286.

The product of its digits is 1728, while the sum is 24.

The square root of 31226226 is about 5588.0431279653. The cubic root of 31226226 is about 314.9003665748.

Adding to 31226226 its reverse (62262213), we get a palindrome (93488439).

The spelling of 31226226 in words is "thirty-one million, two hundred twenty-six thousand, two hundred twenty-six".