531020432 has 40 divisors (see below), whose sum is σ = 1091001600. Its totient is φ = 249518592.

The previous prime is 531020387. The next prime is 531020437. The reversal of 531020432 is 234020135.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (531020437) 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, 281669 + ... + 283547.

It is an arithmetic number, because the mean of its divisors is an integer number (27275040).

Almost surely, 2^531020432 is an apocalyptic number.

It is an amenable number.

531020432 is an abundant number, since it is smaller than the sum of its proper divisors (559981168).

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

531020432 is a wasteful number, since it uses less digits than its factorization.

531020432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2943 (or 2937 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 531020432 is about 23043.8805759794. The cubic root of 531020432 is about 809.7862729305.

Adding to 531020432 its reverse (234020135), we get a palindrome (765040567).

The spelling of 531020432 in words is "five hundred thirty-one million, twenty thousand, four hundred thirty-two".