42308903 has 24 divisors (see below), whose sum is σ = 56134512. Its totient is φ = 31497984.

The previous prime is 42308899. The next prime is 42308911. The reversal of 42308903 is 30980324.

It is not a de Polignac number, because 42308903 - 2² = 42308899 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42308933) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8876 + ... + 12782.

It is an arithmetic number, because the mean of its divisors is an integer number (2338938).

Almost surely, 2^42308903 is an apocalyptic number.

42308903 is a deficient number, since it is larger than the sum of its proper divisors (13825609).

42308903 is a wasteful number, since it uses less digits than its factorization.

42308903 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3951 (or 3944 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 29.

The square root of 42308903 is about 6504.5294218721. The cubic root of 42308903 is about 348.4527703081.

The spelling of 42308903 in words is "forty-two million, three hundred eight thousand, nine hundred three".