42404004442 has 8 divisors (see below), whose sum is σ = 63613703232. Its totient is φ = 21199436700.

The previous prime is 42404004439. The next prime is 42404004443. The reversal of 42404004442 is 24440040424.

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 42404004442.

It is not an unprimeable number, because it can be changed into a prime (42404004443) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1262034 + ... + 1295197.

It is an arithmetic number, because the mean of its divisors is an integer number (7951712904).

Almost surely, 2^42404004442 is an apocalyptic number.

42404004442 is a deficient number, since it is larger than the sum of its proper divisors (21209698790).

42404004442 is a wasteful number, since it uses less digits than its factorization.

42404004442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2565524.

The product of its (nonzero) digits is 16384, while the sum is 28.

Adding to 42404004442 its reverse (24440040424), we get a palindrome (66844044866).

The spelling of 42404004442 in words is "forty-two billion, four hundred four million, four thousand, four hundred forty-two".