531404930 has 16 divisors (see below), whose sum is σ = 1093176000. Its totient is φ = 182195952.

The previous prime is 531404899. The next prime is 531404933. The reversal of 531404930 is 39404135.

It is a junction number, because it is equal to n+sod(n) for n = 531404893 and 531404902.

It is not an unprimeable number, because it can be changed into a prime (531404933) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3795680 + ... + 3795819.

It is an arithmetic number, because the mean of its divisors is an integer number (68323500).

Almost surely, 2^531404930 is an apocalyptic number.

531404930 is an abundant number, since it is smaller than the sum of its proper divisors (561771070).

531404930 is a wasteful number, since it uses less digits than its factorization.

531404930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7591513.

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

The square root of 531404930 is about 23052.2218018134. The cubic root of 531404930 is about 809.9816741269.

The spelling of 531404930 in words is "five hundred thirty-one million, four hundred four thousand, nine hundred thirty".