42240159 has 24 divisors (see below), whose sum is σ = 66175200. Its totient is φ = 25808832.

The previous prime is 42240131. The next prime is 42240161. The reversal of 42240159 is 95104224.

It is not a de Polignac number, because 42240159 - 2⁷ = 42240031 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42240109) 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 23 ways as a sum of consecutive naturals, for example, 16222 + ... + 18644.

It is an arithmetic number, because the mean of its divisors is an integer number (2757300).

Almost surely, 2^42240159 is an apocalyptic number.

42240159 is a deficient number, since it is larger than the sum of its proper divisors (23935041).

42240159 is a wasteful number, since it uses less digits than its factorization.

42240159 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2591 (or 2588 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 42240159 is about 6499.2429559142. The cubic root of 42240159 is about 348.2639446248.

The spelling of 42240159 in words is "forty-two million, two hundred forty thousand, one hundred fifty-nine".