513432424 has 32 divisors (see below), whose sum is σ = 991355400. Its totient is φ = 249108480.

The previous prime is 513432343. The next prime is 513432431. The reversal of 513432424 is 424234315.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 431891524 + 81540900 = 20782^2 + 9030^2 .

It is a super-2 number, since 2×513432424² = 527225708029031552, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 513432392 and 513432401.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 118944 + ... + 123184.

Almost surely, 2^513432424 is an apocalyptic number.

It is an amenable number.

513432424 is a deficient number, since it is larger than the sum of its proper divisors (477922976).

513432424 is a wasteful number, since it uses less digits than its factorization.

513432424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4693 (or 4689 counting only the distinct ones).

The product of its digits is 11520, while the sum is 28.

The square root of 513432424 is about 22659.0472880040. The cubic root of 513432424 is about 800.7453595000.

Adding to 513432424 its reverse (424234315), we get a palindrome (937666739).

The spelling of 513432424 in words is "five hundred thirteen million, four hundred thirty-two thousand, four hundred twenty-four".