531630416 has 20 divisors (see below), whose sum is σ = 1030410612. Its totient is φ = 265718016.

The previous prime is 531630413. The next prime is 531630479. The reversal of 531630416 is 614036135.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 131790400 + 399840016 = 11480^2 + 19996^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (531630413) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 62516 + ... + 70508.

Almost surely, 2^531630416 is an apocalyptic number.

It is an amenable number.

531630416 is a deficient number, since it is larger than the sum of its proper divisors (498780196).

531630416 is a wasteful number, since it uses less digits than its factorization.

531630416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12158 (or 12152 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 29.

The square root of 531630416 is about 23057.1120481295. The cubic root of 531630416 is about 810.0962218669.

The spelling of 531630416 in words is "five hundred thirty-one million, six hundred thirty thousand, four hundred sixteen".