42103805 has 8 divisors (see below), whose sum is σ = 51279072. Its totient is φ = 33180048.

The previous prime is 42103771. The next prime is 42103811. The reversal of 42103805 is 50830124.

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

It is a cyclic number.

It is not a de Polignac number, because 42103805 - 2²⁰ = 41055229 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 62507 + ... + 63176.

It is an arithmetic number, because the mean of its divisors is an integer number (6409884).

Almost surely, 2^42103805 is an apocalyptic number.

It is an amenable number.

42103805 is a deficient number, since it is larger than the sum of its proper divisors (9175267).

42103805 is a wasteful number, since it uses less digits than its factorization.

42103805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125755.

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 42103805 is about 6488.7444856459. The cubic root of 42103805 is about 347.8888010638. Note that the first 4 decimals are identical.

Adding to 42103805 its reverse (50830124), we get a palindrome (92933929).

The spelling of 42103805 in words is "forty-two million, one hundred three thousand, eight hundred five".