42838929 has 64 divisors (see below), whose sum is σ = 78336000. Its totient is φ = 22581504.

The previous prime is 42838921. The next prime is 42838951. The reversal of 42838929 is 92983824.

42838929 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 42838929 - 2³ = 42838921 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42838921) 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 63 ways as a sum of consecutive naturals, for example, 215172 + ... + 215370.

It is an arithmetic number, because the mean of its divisors is an integer number (1224000).

Almost surely, 2^42838929 is an apocalyptic number.

It is an amenable number.

42838929 is a deficient number, since it is larger than the sum of its proper divisors (35497071).

42838929 is a wasteful number, since it uses less digits than its factorization.

42838929 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 299 (or 293 counting only the distinct ones).

The product of its digits is 248832, while the sum is 45.

The square root of 42838929 is about 6545.1454529292. The cubic root of 42838929 is about 349.9018200808.

The spelling of 42838929 in words is "forty-two million, eight hundred thirty-eight thousand, nine hundred twenty-nine".