42445210 has 8 divisors (see below), whose sum is σ = 76401396. Its totient is φ = 16978080.

The previous prime is 42445187. The next prime is 42445211. The reversal of 42445210 is 1254424.

It is a happy number.

42445210 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 41254929 + 1190281 = 6423^2 + 1091^2 .

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

It is not an unprimeable number, because it can be changed into a prime (42445211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2122251 + ... + 2122270.

Almost surely, 2^42445210 is an apocalyptic number.

42445210 is a deficient number, since it is larger than the sum of its proper divisors (33956186).

42445210 is a wasteful number, since it uses less digits than its factorization.

42445210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4244528.

The product of its (nonzero) digits is 1280, while the sum is 22.

The square root of 42445210 is about 6514.9988488103. The cubic root of 42445210 is about 348.8265737143.

Adding to 42445210 its reverse (1254424), we get a palindrome (43699634).

The spelling of 42445210 in words is "forty-two million, four hundred forty-five thousand, two hundred ten".