42008541 has 16 divisors (see below), whose sum is σ = 57226176. Its totient is φ = 27405056.

The previous prime is 42008539. The next prime is 42008543. The reversal of 42008541 is 14580024.

It is an interprime number because it is at equal distance from previous prime (42008539) and next prime (42008543).

It is a cyclic number.

It is not a de Polignac number, because 42008541 - 2¹ = 42008539 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42008543) 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, 27391 + ... + 28883.

It is an arithmetic number, because the mean of its divisors is an integer number (3576636).

Almost surely, 2^42008541 is an apocalyptic number.

It is an amenable number.

42008541 is a deficient number, since it is larger than the sum of its proper divisors (15217635).

42008541 is a wasteful number, since it uses less digits than its factorization.

42008541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1692.

The product of its (nonzero) digits is 1280, while the sum is 24.

The square root of 42008541 is about 6481.3996173666. The cubic root of 42008541 is about 347.6262253865.

Adding to 42008541 its reverse (14580024), we get a palindrome (56588565).

The spelling of 42008541 in words is "forty-two million, eight thousand, five hundred forty-one".