42038829 has 12 divisors (see below), whose sum is σ = 69397536. Its totient is φ = 24022152.

The previous prime is 42038813. The next prime is 42038837. The reversal of 42038829 is 92883024.

It is not a de Polignac number, because 42038829 - 2⁴ = 42038813 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 42038793 and 42038802.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42038809) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 333579 + ... + 333704.

It is an arithmetic number, because the mean of its divisors is an integer number (5783128).

Almost surely, 2^42038829 is an apocalyptic number.

It is an amenable number.

42038829 is a deficient number, since it is larger than the sum of its proper divisors (27358707).

42038829 is a wasteful number, since it uses less digits than its factorization.

42038829 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 667296 (or 667293 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 36.

The square root of 42038829 is about 6483.7357287292. The cubic root of 42038829 is about 347.7097510494.

The spelling of 42038829 in words is "forty-two million, thirty-eight thousand, eight hundred twenty-nine".