42644230 has 16 divisors (see below), whose sum is σ = 76885200. Its totient is φ = 17029792.

The previous prime is 42644219. The next prime is 42644237. The reversal of 42644230 is 3244624.

It is a junction number, because it is equal to n+sod(n) for n = 42644195 and 42644204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42644237) 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, 3621 + ... + 9919.

It is an arithmetic number, because the mean of its divisors is an integer number (4805325).

Almost surely, 2^42644230 is an apocalyptic number.

42644230 is a deficient number, since it is larger than the sum of its proper divisors (34240970).

42644230 is a wasteful number, since it uses less digits than its factorization.

42644230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6983.

The product of its (nonzero) digits is 4608, while the sum is 25.

The square root of 42644230 is about 6530.2549720512. The cubic root of 42644230 is about 349.3709244247.

Adding to 42644230 its reverse (3244624), we get a palindrome (45888854).

The spelling of 42644230 in words is "forty-two million, six hundred forty-four thousand, two hundred thirty".