42829839 has 36 divisors (see below), whose sum is σ = 69371640. Its totient is φ = 25421760.

The previous prime is 42829823. The next prime is 42829907. The reversal of 42829839 is 93892824.

It is not a de Polignac number, because 42829839 - 2⁴ = 42829823 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 42829794 and 42829803.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42829939) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 43624 + ... + 44594.

It is an arithmetic number, because the mean of its divisors is an integer number (1926990).

Almost surely, 2^42829839 is an apocalyptic number.

42829839 is a deficient number, since it is larger than the sum of its proper divisors (26541801).

42829839 is a wasteful number, since it uses less digits than its factorization.

42829839 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1032 (or 1016 counting only the distinct ones).

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

The square root of 42829839 is about 6544.4510082970. The cubic root of 42829839 is about 349.8770697535.

The spelling of 42829839 in words is "forty-two million, eight hundred twenty-nine thousand, eight hundred thirty-nine".