42020210 has 16 divisors (see below), whose sum is σ = 79617600. Its totient is φ = 15923376.

The previous prime is 42020207. The next prime is 42020219. The reversal of 42020210 is 1202024.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 42020191 and 42020200.

It is not an unprimeable number, because it can be changed into a prime (42020219) 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, 110390 + ... + 110769.

It is an arithmetic number, because the mean of its divisors is an integer number (4976100).

Almost surely, 2^42020210 is an apocalyptic number.

42020210 is a deficient number, since it is larger than the sum of its proper divisors (37597390).

42020210 is a wasteful number, since it uses less digits than its factorization.

42020210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 221185.

The product of its (nonzero) digits is 32, while the sum is 11.

The square root of 42020210 is about 6482.2997462320. The cubic root of 42020210 is about 347.6584099121.

Adding to 42020210 its reverse (1202024), we get a palindrome (43222234).

The spelling of 42020210 in words is "forty-two million, twenty thousand, two hundred ten".