42135504 has 20 divisors (see below), whose sum is σ = 108850176. Its totient is φ = 14045152.

The previous prime is 42135497. The next prime is 42135523. The reversal of 42135504 is 40553124.

42135504 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 438864 + ... + 438959.

Almost surely, 2^42135504 is an apocalyptic number.

It is an amenable number.

42135504 is an abundant number, since it is smaller than the sum of its proper divisors (66714672).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

42135504 is a wasteful number, since it uses less digits than its factorization.

42135504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 877834 (or 877828 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 42135504 is about 6491.1866403609. The cubic root of 42135504 is about 347.9760850259.

Adding to 42135504 its reverse (40553124), we get a palindrome (82688628).

The spelling of 42135504 in words is "forty-two million, one hundred thirty-five thousand, five hundred four".