42135204 has 24 divisors (see below), whose sum is σ = 99983520. Its totient is φ = 13806784.

The previous prime is 42135187. The next prime is 42135211. The reversal of 42135204 is 40253124.

It is a super-2 number, since 2×42135204² = 3550750832243232, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29049 + ... + 30464.

It is an arithmetic number, because the mean of its divisors is an integer number (4165980).

Almost surely, 2^42135204 is an apocalyptic number.

It is an amenable number.

42135204 is an abundant number, since it is smaller than the sum of its proper divisors (57848316).

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

42135204 is a wasteful number, since it uses less digits than its factorization.

42135204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59579 (or 59577 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 42135204 is about 6491.1635320642. The cubic root of 42135204 is about 347.9752591739.

Adding to 42135204 its reverse (40253124), we get a palindrome (82388328).

The spelling of 42135204 in words is "forty-two million, one hundred thirty-five thousand, two hundred four".