42144263 has 6 divisors (see below), whose sum is σ = 49025016. Its totient is φ = 36123612.

The previous prime is 42144253. The next prime is 42144293. The reversal of 42144263 is 36244124.

It is not a de Polignac number, because 42144263 - 2⁴ = 42144247 is a prime.

It is a super-2 number, since 2×42144263² = 3552277807626338, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42144233) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 429995 + ... + 430092.

It is an arithmetic number, because the mean of its divisors is an integer number (8170836).

Almost surely, 2^42144263 is an apocalyptic number.

42144263 is a deficient number, since it is larger than the sum of its proper divisors (6880753).

42144263 is an equidigital number, since it uses as much as digits as its factorization.

42144263 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 860101 (or 860094 counting only the distinct ones).

The product of its digits is 4608, while the sum is 26.

The square root of 42144263 is about 6491.8612893376. The cubic root of 42144263 is about 348.0001954242. Note that the first 3 decimals are identical.

Adding to 42144263 its reverse (36244124), we get a palindrome (78388387).

The spelling of 42144263 in words is "forty-two million, one hundred forty-four thousand, two hundred sixty-three".