42404535 has 24 divisors (see below), whose sum is σ = 73653840. Its totient is φ = 22568832.

The previous prime is 42404533. The next prime is 42404543. The reversal of 42404535 is 53540424.

42404535 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 42404535 - 2¹ = 42404533 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 42404499 and 42404508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42404533) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 38107 + ... + 39203.

It is an arithmetic number, because the mean of its divisors is an integer number (3068910).

Almost surely, 2^42404535 is an apocalyptic number.

42404535 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

42404535 is a deficient number, since it is larger than the sum of its proper divisors (31249305).

42404535 is a wasteful number, since it uses less digits than its factorization.

42404535 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1967 (or 1964 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 27.

The square root of 42404535 is about 6511.8764576733. The cubic root of 42404535 is about 348.7151119376.

Adding to 42404535 its reverse (53540424), we get a palindrome (95944959).

The spelling of 42404535 in words is "forty-two million, four hundred four thousand, five hundred thirty-five".