531040430 has 8 divisors (see below), whose sum is σ = 955872792. Its totient is φ = 212416168.

The previous prime is 531040429. The next prime is 531040439. The reversal of 531040430 is 34040135.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (531040439) 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, 26552012 + ... + 26552031.

It is an arithmetic number, because the mean of its divisors is an integer number (119484099).

Almost surely, 2^531040430 is an apocalyptic number.

531040430 is a deficient number, since it is larger than the sum of its proper divisors (424832362).

531040430 is a wasteful number, since it uses less digits than its factorization.

531040430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53104050.

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

The square root of 531040430 is about 23044.3144831865. The cubic root of 531040430 is about 809.7964382033.

Adding to 531040430 its reverse (34040135), we get a palindrome (565080565).

The spelling of 531040430 in words is "five hundred thirty-one million, forty thousand, four hundred thirty".