42741729 has 8 divisors (see below), whose sum is σ = 63321120. Its totient is φ = 28494468.

The previous prime is 42741709. The next prime is 42741731. The reversal of 42741729 is 92714724.

42741729 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 42741729 - 2⁸ = 42741473 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 42741693 and 42741702.

It is not an unprimeable number, because it can be changed into a prime (42741709) 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, 791487 + ... + 791540.

It is an arithmetic number, because the mean of its divisors is an integer number (7915140).

Almost surely, 2^42741729 is an apocalyptic number.

It is an amenable number.

42741729 is a deficient number, since it is larger than the sum of its proper divisors (20579391).

42741729 is a wasteful number, since it uses less digits than its factorization.

42741729 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1583036 (or 1583030 counting only the distinct ones).

The product of its digits is 28224, while the sum is 36.

The square root of 42741729 is about 6537.7158855368. The cubic root of 42741729 is about 349.6369814319.

The spelling of 42741729 in words is "forty-two million, seven hundred forty-one thousand, seven hundred twenty-nine".