42420431330 has 32 divisors (see below), whose sum is σ = 80866791936. Its totient is φ = 15966402304.

The previous prime is 42420431281. The next prime is 42420431351. The reversal of 42420431330 is 3313402424.

It is a self number, because there is not a number n which added to its sum of digits gives 42420431330.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 787727 + ... + 839853.

It is an arithmetic number, because the mean of its divisors is an integer number (2527087248).

Almost surely, 2^42420431330 is an apocalyptic number.

42420431330 is a deficient number, since it is larger than the sum of its proper divisors (38446360606).

42420431330 is a wasteful number, since it uses less digits than its factorization.

42420431330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56938.

The product of its (nonzero) digits is 6912, while the sum is 26.

Adding to 42420431330 its reverse (3313402424), we get a palindrome (45733833754).

The spelling of 42420431330 in words is "forty-two billion, four hundred twenty million, four hundred thirty-one thousand, three hundred thirty".