42031941 has 32 divisors (see below), whose sum is σ = 66401280. Its totient is φ = 23151744.

The previous prime is 42031937. The next prime is 42031949. The reversal of 42031941 is 14913024.

It is not a de Polignac number, because 42031941 - 2² = 42031937 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42031949) 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 31 ways as a sum of consecutive naturals, for example, 80106 + ... + 80628.

It is an arithmetic number, because the mean of its divisors is an integer number (2075040).

Almost surely, 2^42031941 is an apocalyptic number.

It is an amenable number.

42031941 is a deficient number, since it is larger than the sum of its proper divisors (24369339).

42031941 is a wasteful number, since it uses less digits than its factorization.

42031941 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 665.

The product of its (nonzero) digits is 864, while the sum is 24.

The square root of 42031941 is about 6483.2045317112. The cubic root of 42031941 is about 347.6907594358.

Adding to 42031941 its reverse (14913024), we get a palindrome (56944965).

The spelling of 42031941 in words is "forty-two million, thirty-one thousand, nine hundred forty-one".