31226196 has 48 divisors (see below), whose sum is σ = 77288960. Its totient is φ = 9784800.

The previous prime is 31226191. The next prime is 31226219. The reversal of 31226196 is 69162213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31226191) 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, 33975 + ... + 34881.

Almost surely, 2^31226196 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 31226196, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38644480).

31226196 is an abundant number, since it is smaller than the sum of its proper divisors (46062764).

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

31226196 is a wasteful number, since it uses less digits than its factorization.

31226196 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1084 (or 1082 counting only the distinct ones).

The product of its digits is 3888, while the sum is 30.

The square root of 31226196 is about 5588.0404436618. The cubic root of 31226196 is about 314.9002657299.

The spelling of 31226196 in words is "thirty-one million, two hundred twenty-six thousand, one hundred ninety-six".