42739829 has 8 divisors (see below), whose sum is σ = 46747488. Its totient is φ = 38752560.

The previous prime is 42739817. The next prime is 42739831. The reversal of 42739829 is 92893724.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 42739829 - 2⁴ = 42739813 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 42739829.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42739729) 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 7 ways as a sum of consecutive naturals, for example, 527 + ... + 9260.

It is an arithmetic number, because the mean of its divisors is an integer number (5843436).

Almost surely, 2^42739829 is an apocalyptic number.

It is an amenable number.

42739829 is a deficient number, since it is larger than the sum of its proper divisors (4007659).

42739829 is a wasteful number, since it uses less digits than its factorization.

42739829 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10195.

The product of its digits is 217728, while the sum is 44.

The square root of 42739829 is about 6537.5705732328. The cubic root of 42739829 is about 349.6318005457.

The spelling of 42739829 in words is "forty-two million, seven hundred thirty-nine thousand, eight hundred twenty-nine".