531442233340 has 24 divisors (see below), whose sum is σ = 1174767042960. Its totient is φ = 201388635648.

The previous prime is 531442233313. The next prime is 531442233341. The reversal of 531442233340 is 43332244135.

It is a junction number, because it is equal to n+sod(n) for n = 531442233296 and 531442233305.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (531442233341) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 699265717 + ... + 699266476.

It is an arithmetic number, because the mean of its divisors is an integer number (48948626790).

Almost surely, 2^531442233340 is an apocalyptic number.

It is an amenable number.

531442233340 is an abundant number, since it is smaller than the sum of its proper divisors (643324809620).

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

531442233340 is a wasteful number, since it uses less digits than its factorization.

531442233340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1398532221 (or 1398532219 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 34.

Adding to 531442233340 its reverse (43332244135), we get a palindrome (574774477475).

The spelling of 531442233340 in words is "five hundred thirty-one billion, four hundred forty-two million, two hundred thirty-three thousand, three hundred forty".