42104331 has 6 divisors (see below), whose sum is σ = 60817380. Its totient is φ = 28069548.

The previous prime is 42104327. The next prime is 42104333. The reversal of 42104331 is 13340124.

It is not a de Polignac number, because 42104331 - 2² = 42104327 is a prime.

It is a super-2 number, since 2×42104331² = 3545549377915122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (42104333) 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 5 ways as a sum of consecutive naturals, for example, 2339121 + ... + 2339138.

It is an arithmetic number, because the mean of its divisors is an integer number (10136230).

Almost surely, 2^42104331 is an apocalyptic number.

42104331 is a deficient number, since it is larger than the sum of its proper divisors (18713049).

42104331 is a wasteful number, since it uses less digits than its factorization.

42104331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4678265 (or 4678262 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 42104331 is about 6488.7850172432. The cubic root of 42104331 is about 347.8902497749.

Adding to 42104331 its reverse (13340124), we get a palindrome (55444455).

The spelling of 42104331 in words is "forty-two million, one hundred four thousand, three hundred thirty-one".