42043903 has 8 divisors (see below), whose sum is σ = 48280320. Its totient is φ = 36209880.

The previous prime is 42043871. The next prime is 42043913. The reversal of 42043903 is 30934024.

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 42043903 - 2⁵ = 42043871 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42043913) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 100375 + ... + 100792.

It is an arithmetic number, because the mean of its divisors is an integer number (6035040).

Almost surely, 2^42043903 is an apocalyptic number.

42043903 is a deficient number, since it is larger than the sum of its proper divisors (6236417).

42043903 is a wasteful number, since it uses less digits than its factorization.

42043903 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 201197.

The product of its (nonzero) digits is 2592, while the sum is 25.

The square root of 42043903 is about 6484.1270036914. The cubic root of 42043903 is about 347.7237397700.

Adding to 42043903 its reverse (30934024), we get a palindrome (72977927).

The spelling of 42043903 in words is "forty-two million, forty-three thousand, nine hundred three".