531940896 has 72 divisors (see below), whose sum is σ = 1529777340. Its totient is φ = 175312896.

The previous prime is 531940889. The next prime is 531940943. The reversal of 531940896 is 698049135.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 495507600 + 36433296 = 22260^2 + 6036^2 .

It is a tau number, because it is divible by the number of its divisors (72).

It is a super-2 number, since 2×531940896² = 565922233674565632, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15256 + ... + 36008.

Almost surely, 2^531940896 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 531940896, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (764888670).

531940896 is an abundant number, since it is smaller than the sum of its proper divisors (997836444).

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

531940896 is a wasteful number, since it uses less digits than its factorization.

531940896 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20858 (or 20847 counting only the distinct ones).

The product of its (nonzero) digits is 233280, while the sum is 45.

The square root of 531940896 is about 23063.8439120629. The cubic root of 531940896 is about 810.2538938885.

The spelling of 531940896 in words is "five hundred thirty-one million, nine hundred forty thousand, eight hundred ninety-six".