42663144 has 32 divisors (see below), whose sum is σ = 107039520. Its totient is φ = 14170176.

The previous prime is 42663139. The next prime is 42663157. The reversal of 42663144 is 44136624.

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3999 + ... + 10065.

It is an arithmetic number, because the mean of its divisors is an integer number (3344985).

Almost surely, 2^42663144 is an apocalyptic number.

It is an amenable number.

42663144 is an abundant number, since it is smaller than the sum of its proper divisors (64376376).

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

42663144 is a wasteful number, since it uses less digits than its factorization.

42663144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6369 (or 6365 counting only the distinct ones).

The product of its digits is 13824, while the sum is 30.

The square root of 42663144 is about 6531.7029938600. The cubic root of 42663144 is about 349.4225689649.

Adding to 42663144 its reverse (44136624), we get a palindrome (86799768).

The spelling of 42663144 in words is "forty-two million, six hundred sixty-three thousand, one hundred forty-four".