304232220040 has 64 divisors (see below), whose sum is σ = 792214156800. Its totient is φ = 102987825408.

The previous prime is 304232219999. The next prime is 304232220049. The reversal of 304232220040 is 40022232403.

It is a junction number, because it is equal to n+sod(n) for n = 304232219993 and 304232220020.

It is not an unprimeable number, because it can be changed into a prime (304232220049) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6854739 + ... + 6898978.

It is an arithmetic number, because the mean of its divisors is an integer number (12378346200).

Almost surely, 2^304232220040 is an apocalyptic number.

It is an amenable number.

304232220040 is an abundant number, since it is smaller than the sum of its proper divisors (487981936760).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

304232220040 is a wasteful number, since it uses less digits than its factorization.

304232220040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13753814 (or 13753810 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 22.

Adding to 304232220040 its reverse (40022232403), we get a palindrome (344254452443).

The spelling of 304232220040 in words is "three hundred four billion, two hundred thirty-two million, two hundred twenty thousand, forty".