304040040403 has 32 divisors (see below), whose sum is σ = 353670147072.
Its totient is φ = 258311040000.
The previous prime is 304040040389. The next prime is 304040040407.
Multipling 304040040403 by its sum of digits (22), we get a palindrome (6688880888866).
It can be divided in two parts, 3040400 and 40403, that added together give a palindrome (3080803).
It is a happy number.
304040040403 is nontrivially palindromic in base 10.
It is a cyclic number.
It is not a de Polignac number, because 304040040403 - 213 = 304040032211 is a prime.
It is not an unprimeable number, because it can be changed into a prime (304040040407) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 15383778 + ... + 15403528.
It is an arithmetic number, because the mean of its divisors is an integer number (11052192096).
Almost surely, 2304040040403 is an apocalyptic number.
304040040403 is a deficient number, since it is larger than the sum of its proper divisors (49630106669).
304040040403 is a wasteful number, since it uses less digits than its factorization.
304040040403 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 20355.
The product of its (nonzero) digits is 2304, while the sum is 22.
The spelling of 304040040403 in words is "three hundred four billion, forty million, forty thousand, four hundred three".