42144244 has 24 divisors (see below), whose sum is σ = 74832800. Its totient is φ = 20766240.

The previous prime is 42144233. The next prime is 42144247. The reversal of 42144244 is 44244124.

It is a super-2 number, since 2×42144244² = 3552274604663072, which contains 22 as substring.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42144247) 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, 127159 + ... + 127489.

Almost surely, 2^42144244 is an apocalyptic number.

It is an amenable number.

42144244 is a deficient number, since it is larger than the sum of its proper divisors (32688556).

42144244 is a wasteful number, since it uses less digits than its factorization.

42144244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 703 (or 701 counting only the distinct ones).

The product of its digits is 4096, while the sum is 25.

The square root of 42144244 is about 6491.8598259667. The cubic root of 42144244 is about 348.0001431276. Note that the first 3 decimals are identical.

Adding to 42144244 its reverse (44244124), we get a palindrome (86388368).

The spelling of 42144244 in words is "forty-two million, one hundred forty-four thousand, two hundred forty-four".