42320430434 has 8 divisors (see below), whose sum is σ = 63706556268. Its totient is φ = 21084911680.

The previous prime is 42320430421. The next prime is 42320430457. The reversal of 42320430434 is 43403402324.

It can be written as a sum of positive squares in 2 ways, for example, as 41760966025 + 559464409 = 204355^2 + 23653^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 42320430397 and 42320430406.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37651067 + ... + 37652190.

Almost surely, 2^42320430434 is an apocalyptic number.

42320430434 is a deficient number, since it is larger than the sum of its proper divisors (21386125834).

42320430434 is a wasteful number, since it uses less digits than its factorization.

42320430434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75303540.

The product of its (nonzero) digits is 27648, while the sum is 29.

Adding to 42320430434 its reverse (43403402324), we get a palindrome (85723832758).

The spelling of 42320430434 in words is "forty-two billion, three hundred twenty million, four hundred thirty thousand, four hundred thirty-four".