42008841 has 16 divisors (see below), whose sum is σ = 71126400. Its totient is φ = 24004944.

The previous prime is 42008797. The next prime is 42008843. The reversal of 42008841 is 14880024.

It is not a de Polignac number, because 42008841 - 2⁶ = 42008777 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (42008843) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 110946 + ... + 111323.

It is an arithmetic number, because the mean of its divisors is an integer number (4445400).

Almost surely, 2^42008841 is an apocalyptic number.

It is an amenable number.

42008841 is a deficient number, since it is larger than the sum of its proper divisors (29117559).

42008841 is a wasteful number, since it uses less digits than its factorization.

42008841 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 222285 (or 222279 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 27.

The square root of 42008841 is about 6481.4227604747. The cubic root of 42008841 is about 347.6270528978.

Adding to 42008841 its reverse (14880024), we get a palindrome (56888865).

It can be divided in two parts, 42008 and 841, that added together give a square (42849 = 207²).

The spelling of 42008841 in words is "forty-two million, eight thousand, eight hundred forty-one".