42085741 has 12 divisors (see below), whose sum is σ = 45054012. Its totient is φ = 39299904.

The previous prime is 42085711. The next prime is 42085753. The reversal of 42085741 is 14758024.

It can be written as a sum of positive squares in 2 ways, for example, as 15768841 + 26316900 = 3971^2 + 5130^2 .

It is not a de Polignac number, because 42085741 - 2²¹ = 39988589 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42085711) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 25555 + ... + 27151.

It is an arithmetic number, because the mean of its divisors is an integer number (3754501).

Almost surely, 2^42085741 is an apocalyptic number.

It is an amenable number.

42085741 is a deficient number, since it is larger than the sum of its proper divisors (2968271).

42085741 is a wasteful number, since it uses less digits than its factorization.

42085741 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1708 (or 1689 counting only the distinct ones).

The product of its (nonzero) digits is 8960, while the sum is 31.

The square root of 42085741 is about 6487.3523875307. The cubic root of 42085741 is about 347.8390418062.

The spelling of 42085741 in words is "forty-two million, eighty-five thousand, seven hundred forty-one".