226531242 has 80 divisors (see below), whose sum is σ = 595900800. Its totient is φ = 62962272.

The previous prime is 226531237. The next prime is 226531271. The reversal of 226531242 is 242135622.

It is a happy number.

226531242 is a `hidden beast` number, since 2 + 2 + 653 + 1 + 2 + 4 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

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 39 ways as a sum of consecutive naturals, for example, 39259 + ... + 44657.

It is an arithmetic number, because the mean of its divisors is an integer number (7448760).

Almost surely, 2^226531242 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 226531242, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (297950400).

226531242 is an abundant number, since it is smaller than the sum of its proper divisors (369369558).

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

226531242 is a wasteful number, since it uses less digits than its factorization.

226531242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5457 (or 5448 counting only the distinct ones).

The product of its digits is 5760, while the sum is 27.

The square root of 226531242 is about 15050.9548534304. The cubic root of 226531242 is about 609.5968329397.

Adding to 226531242 its reverse (242135622), we get a palindrome (468666864).

The spelling of 226531242 in words is "two hundred twenty-six million, five hundred thirty-one thousand, two hundred forty-two".