232304531 has 16 divisors (see below), whose sum is σ = 247632960. Its totient is φ = 217863360.

The previous prime is 232304519. The next prime is 232304549. The reversal of 232304531 is 135403232.

It is not a de Polignac number, because 232304531 - 2¹⁰ = 232303507 is a prime.

It is a super-2 number, since 2×232304531² = 107930790246259922, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 232304497 and 232304506.

It is not an unprimeable number, because it can be changed into a prime (232304561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 742031 + ... + 742343.

It is an arithmetic number, because the mean of its divisors is an integer number (15477060).

Almost surely, 2^232304531 is an apocalyptic number.

232304531 is a deficient number, since it is larger than the sum of its proper divisors (15328429).

232304531 is an frugal number, since it uses more digits than its factorization.

232304531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 443 (or 397 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 23.

The square root of 232304531 is about 15241.5396531978. The cubic root of 232304531 is about 614.7321026774.

Adding to 232304531 its reverse (135403232), we get a palindrome (367707763).

The spelling of 232304531 in words is "two hundred thirty-two million, three hundred four thousand, five hundred thirty-one".