42130244 has 24 divisors (see below), whose sum is σ = 80138520. Its totient is φ = 19263744.

The previous prime is 42130241. The next prime is 42130261. The reversal of 42130244 is 44203124.

It can be written as a sum of positive squares in 4 ways, for example, as 36100 + 42094144 = 190^2 + 6488^2 .

It is not an unprimeable number, because it can be changed into a prime (42130241) 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, 1952 + ... + 9384.

It is an arithmetic number, because the mean of its divisors is an integer number (3339105).

Almost surely, 2^42130244 is an apocalyptic number.

It is an amenable number.

42130244 is a deficient number, since it is larger than the sum of its proper divisors (38008276).

42130244 is a wasteful number, since it uses less digits than its factorization.

42130244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7559 (or 7557 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 42130244 is about 6490.7814629673. The cubic root of 42130244 is about 347.9616045189.

Adding to 42130244 its reverse (44203124), we get a palindrome (86333368).

The spelling of 42130244 in words is "forty-two million, one hundred thirty thousand, two hundred forty-four".