42660941 has 4 divisors (see below), whose sum is σ = 42877692. Its totient is φ = 42444192.

The previous prime is 42660923. The next prime is 42660971. The reversal of 42660941 is 14906624.

It is a happy number.

42660941 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 34515625 + 8145316 = 5875^2 + 2854^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42660941 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 42660898 and 42660907.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42660901) 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, 108080 + ... + 108473.

It is an arithmetic number, because the mean of its divisors is an integer number (10719423).

Almost surely, 2^42660941 is an apocalyptic number.

It is an amenable number.

42660941 is a deficient number, since it is larger than the sum of its proper divisors (216751).

42660941 is a wasteful number, since it uses less digits than its factorization.

42660941 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 216750.

The product of its (nonzero) digits is 10368, while the sum is 32.

The square root of 42660941 is about 6531.5343526617. The cubic root of 42660941 is about 349.4165544748.

The spelling of 42660941 in words is "forty-two million, six hundred sixty thousand, nine hundred forty-one".