42741730 has 8 divisors (see below), whose sum is σ = 76935132. Its totient is φ = 17096688.

The previous prime is 42741709. The next prime is 42741731. The reversal of 42741730 is 3714724.

42741730 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 40589641 + 2152089 = 6371^2 + 1467^2 .

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

It is not an unprimeable number, because it can be changed into a prime (42741731) 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 3 ways as a sum of consecutive naturals, for example, 2137077 + ... + 2137096.

Almost surely, 2^42741730 is an apocalyptic number.

42741730 is a deficient number, since it is larger than the sum of its proper divisors (34193402).

42741730 is a wasteful number, since it uses less digits than its factorization.

42741730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4274180.

The product of its (nonzero) digits is 4704, while the sum is 28.

The square root of 42741730 is about 6537.7159620161. The cubic root of 42741730 is about 349.6369841587.

The spelling of 42741730 in words is "forty-two million, seven hundred forty-one thousand, seven hundred thirty".