42103807 has 4 divisors (see below), whose sum is σ = 42247800. Its totient is φ = 41959816.

The previous prime is 42103771. The next prime is 42103811. The reversal of 42103807 is 70830124.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42103807 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42103877) 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, 71557 + ... + 72142.

It is an arithmetic number, because the mean of its divisors is an integer number (10561950).

Almost surely, 2^42103807 is an apocalyptic number.

42103807 is a deficient number, since it is larger than the sum of its proper divisors (143993).

42103807 is a wasteful number, since it uses less digits than its factorization.

42103807 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143992.

The product of its (nonzero) digits is 1344, while the sum is 25.

The square root of 42103807 is about 6488.7446397589. The cubic root of 42103807 is about 347.8888065723. Note that the first 4 decimals are identical.

The spelling of 42103807 in words is "forty-two million, one hundred three thousand, eight hundred seven".