42161060 has 24 divisors (see below), whose sum is σ = 88668216. Its totient is φ = 16839680.

The previous prime is 42161039. The next prime is 42161069. The reversal of 42161060 is 6016124.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 506944 + 41654116 = 712^2 + 6454^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is not an unprimeable number, because it can be changed into a prime (42161069) 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 7 ways as a sum of consecutive naturals, for example, 19220 + ... + 21300.

It is an arithmetic number, because the mean of its divisors is an integer number (3694509).

Almost surely, 2^42161060 is an apocalyptic number.

It is an amenable number.

42161060 is an abundant number, since it is smaller than the sum of its proper divisors (46507156).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

42161060 is a wasteful number, since it uses less digits than its factorization.

42161060 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3103 (or 3101 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 42161060 is about 6493.1548572323. The cubic root of 42161060 is about 348.0464222213.

Adding to 42161060 its reverse (6016124), we get a palindrome (48177184).

The spelling of 42161060 in words is "forty-two million, one hundred sixty-one thousand, sixty".