531040412 has 12 divisors (see below), whose sum is σ = 1062080880. Its totient is φ = 227588736.

The previous prime is 531040409. The next prime is 531040421. The reversal of 531040412 is 214040135.

531040412 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9482837 + ... + 9482892.

It is an arithmetic number, because the mean of its divisors is an integer number (88506740).

Almost surely, 2^531040412 is an apocalyptic number.

It is an amenable number.

531040412 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

531040412 is a wasteful number, since it uses less digits than its factorization.

531040412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18965740 (or 18965738 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 531040412 is about 23044.3140926347. The cubic root of 531040412 is about 809.7964290537.

Adding to 531040412 its reverse (214040135), we get a palindrome (745080547).

The spelling of 531040412 in words is "five hundred thirty-one million, forty thousand, four hundred twelve".