42739571 has 8 divisors (see below), whose sum is σ = 49767264. Its totient is φ = 35942400.

The previous prime is 42739561. The next prime is 42739573. The reversal of 42739571 is 17593724.

42739571 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 42739571 - 2²² = 38545267 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42739573) 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 7 ways as a sum of consecutive naturals, for example, 57230 + ... + 57971.

It is an arithmetic number, because the mean of its divisors is an integer number (6220908).

Almost surely, 2^42739571 is an apocalyptic number.

42739571 is a deficient number, since it is larger than the sum of its proper divisors (7027693).

42739571 is a wasteful number, since it uses less digits than its factorization.

42739571 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115261.

The product of its digits is 52920, while the sum is 38.

The square root of 42739571 is about 6537.5508411025. The cubic root of 42739571 is about 349.6310970240.

The spelling of 42739571 in words is "forty-two million, seven hundred thirty-nine thousand, five hundred seventy-one".