42122305 has 8 divisors (see below), whose sum is σ = 50581800. Its totient is φ = 33674496.

The previous prime is 42122303. The next prime is 42122309. The reversal of 42122305 is 50322124.

It can be written as a sum of positive squares in 4 ways, for example, as 1825201 + 40297104 = 1351^2 + 6348^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 42122305 - 2¹ = 42122303 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42122303) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11431 + ... + 14659.

It is an arithmetic number, because the mean of its divisors is an integer number (6322725).

Almost surely, 2^42122305 is an apocalyptic number.

It is an amenable number.

42122305 is a deficient number, since it is larger than the sum of its proper divisors (8459495).

42122305 is a wasteful number, since it uses less digits than its factorization.

42122305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5843.

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 42122305 is about 6490.1698745102. The cubic root of 42122305 is about 347.9397465815.

Adding to 42122305 its reverse (50322124), we get a palindrome (92444429).

The spelling of 42122305 in words is "forty-two million, one hundred twenty-two thousand, three hundred five".