42209130 has 32 divisors (see below), whose sum is σ = 107262144. Its totient is φ = 10593536.

The previous prime is 42209099. The next prime is 42209137. The reversal of 42209130 is 3190224.

It is a super-2 number, since 2×42209130² = 3563221310713800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 42209097 and 42209106.

It is not an unprimeable number, because it can be changed into a prime (42209137) 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 15 ways as a sum of consecutive naturals, for example, 40872 + ... + 41891.

It is an arithmetic number, because the mean of its divisors is an integer number (3351942).

Almost surely, 2^42209130 is an apocalyptic number.

42209130 is an abundant number, since it is smaller than the sum of its proper divisors (65053014).

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

42209130 is a wasteful number, since it uses less digits than its factorization.

42209130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82790.

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 42209130 is about 6496.8553931883. The cubic root of 42209130 is about 348.1786472102.

Adding to 42209130 its reverse (3190224), we get a palindrome (45399354).

The spelling of 42209130 in words is "forty-two million, two hundred nine thousand, one hundred thirty".