42739336 has 32 divisors (see below), whose sum is σ = 84427200. Its totient is φ = 20243520.

The previous prime is 42739327. The next prime is 42739339. The reversal of 42739336 is 63393724.

It is a junction number, because it is equal to n+sod(n) for n = 42739295 and 42739304.

It is not an unprimeable number, because it can be changed into a prime (42739339) 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, 18991 + ... + 21121.

It is an arithmetic number, because the mean of its divisors is an integer number (2638350).

Almost surely, 2^42739336 is an apocalyptic number.

42739336 is a gapful number since it is divisible by the number (46) formed by its first and last digit.

It is an amenable number.

42739336 is a deficient number, since it is larger than the sum of its proper divisors (41687864).

42739336 is a wasteful number, since it uses less digits than its factorization.

42739336 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2269 (or 2265 counting only the distinct ones).

The product of its digits is 81648, while the sum is 37.

The square root of 42739336 is about 6537.5328679862. The cubic root of 42739336 is about 349.6304562169.

The spelling of 42739336 in words is "forty-two million, seven hundred thirty-nine thousand, three hundred thirty-six".