42306020 has 12 divisors (see below), whose sum is σ = 88842684. Its totient is φ = 16922400.

The previous prime is 42305987. The next prime is 42306029. The reversal of 42306020 is 2060324.

It can be written as a sum of positive squares in 2 ways, for example, as 20720704 + 21585316 = 4552^2 + 4646^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 42306020.

It is not an unprimeable number, because it can be changed into a prime (42306029) 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 3 ways as a sum of consecutive naturals, for example, 1057631 + ... + 1057670.

It is an arithmetic number, because the mean of its divisors is an integer number (7403557).

Almost surely, 2^42306020 is an apocalyptic number.

It is an amenable number.

42306020 is an abundant number, since it is smaller than the sum of its proper divisors (46536664).

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

42306020 is a wasteful number, since it uses less digits than its factorization.

42306020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2115310 (or 2115308 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 42306020 is about 6504.3078032947. The cubic root of 42306020 is about 348.4448554086. Note that the first 3 decimals are identical.

Adding to 42306020 its reverse (2060324), we get a palindrome (44366344).

The spelling of 42306020 in words is "forty-two million, three hundred six thousand, twenty".