42129204 has 24 divisors (see below), whose sum is σ = 105863520. Its totient is φ = 12962784.

The previous prime is 42129173. The next prime is 42129209. The reversal of 42129204 is 40292124.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42129209) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 134874 + ... + 135185.

It is an arithmetic number, because the mean of its divisors is an integer number (4410980).

Almost surely, 2^42129204 is an apocalyptic number.

It is an amenable number.

42129204 is an abundant number, since it is smaller than the sum of its proper divisors (63734316).

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

42129204 is a wasteful number, since it uses less digits than its factorization.

42129204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 270079 (or 270077 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 24.

The square root of 42129204 is about 6490.7013488528. The cubic root of 42129204 is about 347.9587413102.

The spelling of 42129204 in words is "forty-two million, one hundred twenty-nine thousand, two hundred four".