42144023 has 8 divisors (see below), whose sum is σ = 43342656. Its totient is φ = 40953600.

The previous prime is 42144019. The next prime is 42144041. The reversal of 42144023 is 32044124.

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

It is a cyclic number.

It is not a de Polignac number, because 42144023 - 2² = 42144019 is a prime.

It is a super-2 number, since 2×42144023² = 3552237349249058, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 42143986 and 42144004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42144623) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9215 + ... + 13007.

It is an arithmetic number, because the mean of its divisors is an integer number (5417832).

Almost surely, 2^42144023 is an apocalyptic number.

42144023 is a deficient number, since it is larger than the sum of its proper divisors (1198633).

42144023 is a wasteful number, since it uses less digits than its factorization.

42144023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4105.

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

The square root of 42144023 is about 6491.8428046280. The cubic root of 42144023 is about 347.9995348345. Note that the first 3 decimals are identical.

Adding to 42144023 its reverse (32044124), we get a palindrome (74188147).

It can be divided in two parts, 421 and 44023, that added together give a palindrome (44444).

The spelling of 42144023 in words is "forty-two million, one hundred forty-four thousand, twenty-three".