42340425430 has 32 divisors (see below), whose sum is σ = 79564161600. Its totient is φ = 16202132352.

The previous prime is 42340425397. The next prime is 42340425469. The reversal of 42340425430 is 3452404324.

It is a junction number, because it is equal to n+sod(n) for n = 42340425392 and 42340425401.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 638122 + ... + 701341.

It is an arithmetic number, because the mean of its divisors is an integer number (2486380050).

Almost surely, 2^42340425430 is an apocalyptic number.

42340425430 is a deficient number, since it is larger than the sum of its proper divisors (37223736170).

42340425430 is a wasteful number, since it uses less digits than its factorization.

42340425430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1339608.

The product of its (nonzero) digits is 46080, while the sum is 31.

Adding to 42340425430 its reverse (3452404324), we get a palindrome (45792829754).

The spelling of 42340425430 in words is "forty-two billion, three hundred forty million, four hundred twenty-five thousand, four hundred thirty".