42031935 has 24 divisors (see below), whose sum is σ = 79479504. Its totient is φ = 20378880.

The previous prime is 42031921. The next prime is 42031937. The reversal of 42031935 is 53913024.

It is not a de Polignac number, because 42031935 - 2⁴ = 42031919 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 42031899 and 42031908.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42031937) 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, 41962 + ... + 42951.

It is an arithmetic number, because the mean of its divisors is an integer number (3311646).

Almost surely, 2^42031935 is an apocalyptic number.

42031935 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

42031935 is a deficient number, since it is larger than the sum of its proper divisors (37447569).

42031935 is a wasteful number, since it uses less digits than its factorization.

42031935 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84935 (or 84932 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 27.

The square root of 42031935 is about 6483.2040689770. The cubic root of 42031935 is about 347.6907428917.

Adding to 42031935 its reverse (53913024), we get a palindrome (95944959).

The spelling of 42031935 in words is "forty-two million, thirty-one thousand, nine hundred thirty-five".