231244452 has 36 divisors (see below), whose sum is σ = 585364780. Its totient is φ = 76972032.

The previous prime is 231244451. The next prime is 231244457. The reversal of 231244452 is 254442132.

It can be written as a sum of positive squares in 2 ways, for example, as 121749156 + 109495296 = 11034^2 + 10464^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231244451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 23508 + ... + 31860.

Almost surely, 2^231244452 is an apocalyptic number.

It is an amenable number.

231244452 is an abundant number, since it is smaller than the sum of its proper divisors (354120328).

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

231244452 is a wasteful number, since it uses less digits than its factorization.

231244452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9132 (or 9127 counting only the distinct ones).

The product of its digits is 7680, while the sum is 27.

The square root of 231244452 is about 15206.7239075351. The cubic root of 231244452 is about 613.7956044222.

Adding to 231244452 its product of digits (7680), we get a palindrome (231252132).

Adding to 231244452 its reverse (254442132), we get a palindrome (485686584).

It can be divided in two parts, 2312 and 44452, that added together give a palindrome (46764).

The spelling of 231244452 in words is "two hundred thirty-one million, two hundred forty-four thousand, four hundred fifty-two".