403130430442 has 8 divisors (see below), whose sum is σ = 604888417476. Its totient is φ = 201500957952.

The previous prime is 403130430433. The next prime is 403130430581. The reversal of 403130430442 is 244034031304.

It can be written as a sum of positive squares in 2 ways, for example, as 285028922161 + 118101508281 = 533881^2 + 343659^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 403130430442.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32120793 + ... + 32133340.

Almost surely, 2^403130430442 is an apocalyptic number.

403130430442 is a deficient number, since it is larger than the sum of its proper divisors (201757987034).

403130430442 is a wasteful number, since it uses less digits than its factorization.

403130430442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64257272.

The product of its (nonzero) digits is 13824, while the sum is 28.

Adding to 403130430442 its reverse (244034031304), we get a palindrome (647164461746).

The spelling of 403130430442 in words is "four hundred three billion, one hundred thirty million, four hundred thirty thousand, four hundred forty-two".