42169603 has 16 divisors (see below), whose sum is σ = 51655680. Its totient is φ = 33634656.

The previous prime is 42169597. The next prime is 42169637. The reversal of 42169603 is 30696124.

It is a cyclic number.

It is not a de Polignac number, because 42169603 - 2⁹ = 42169091 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42169643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2418 + ... + 9496.

It is an arithmetic number, because the mean of its divisors is an integer number (3228480).

Almost surely, 2^42169603 is an apocalyptic number.

42169603 is a deficient number, since it is larger than the sum of its proper divisors (9486077).

42169603 is a wasteful number, since it uses less digits than its factorization.

42169603 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7146.

The product of its (nonzero) digits is 7776, while the sum is 31.

The square root of 42169603 is about 6493.8126705349. The cubic root of 42169603 is about 348.0699285861.

The spelling of 42169603 in words is "forty-two million, one hundred sixty-nine thousand, six hundred three".