531043432 has 8 divisors (see below), whose sum is σ = 995706450. Its totient is φ = 265521712.

The previous prime is 531043427. The next prime is 531043489. The reversal of 531043432 is 234340135.

It can be written as a sum of positive squares in only one way, i.e., 466819236 + 64224196 = 21606^2 + 8014^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 531043397 and 531043406.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33190207 + ... + 33190222.

Almost surely, 2^531043432 is an apocalyptic number.

It is an amenable number.

531043432 is a deficient number, since it is larger than the sum of its proper divisors (464663018).

531043432 is a wasteful number, since it uses less digits than its factorization.

531043432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66380435 (or 66380431 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 25.

The square root of 531043432 is about 23044.3796184666. The cubic root of 531043432 is about 809.7979641413.

Adding to 531043432 its reverse (234340135), we get a palindrome (765383567).

The spelling of 531043432 in words is "five hundred thirty-one million, forty-three thousand, four hundred thirty-two".