42420403442 has 8 divisors (see below), whose sum is σ = 63632021376. Its totient is φ = 21209729652.

The previous prime is 42420403439. The next prime is 42420403469. The reversal of 42420403442 is 24430402424.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 110318 + ... + 311465.

It is an arithmetic number, because the mean of its divisors is an integer number (7954002672).

Almost surely, 2^42420403442 is an apocalyptic number.

42420403442 is a deficient number, since it is larger than the sum of its proper divisors (21211617934).

42420403442 is a wasteful number, since it uses less digits than its factorization.

42420403442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 472072.

The product of its (nonzero) digits is 24576, while the sum is 29.

Adding to 42420403442 its reverse (24430402424), we get a palindrome (66850805866).

The spelling of 42420403442 in words is "forty-two billion, four hundred twenty million, four hundred three thousand, four hundred forty-two".