42934661 has 16 divisors (see below), whose sum is σ = 56348160. Its totient is φ = 31693680.

The previous prime is 42934651. The next prime is 42934679. The reversal of 42934661 is 16643924.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42934661 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42934631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13211 + ... + 16136.

It is an arithmetic number, because the mean of its divisors is an integer number (3521760).

Almost surely, 2^42934661 is an apocalyptic number.

It is an amenable number.

42934661 is a deficient number, since it is larger than the sum of its proper divisors (13413499).

42934661 is a wasteful number, since it uses less digits than its factorization.

42934661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29384.

The product of its digits is 31104, while the sum is 35.

The square root of 42934661 is about 6552.4545782478. The cubic root of 42934661 is about 350.1622676147.

The spelling of 42934661 in words is "forty-two million, nine hundred thirty-four thousand, six hundred sixty-one".