42017740 has 24 divisors (see below), whose sum is σ = 92882160. Its totient is φ = 15922368.

The previous prime is 42017707. The next prime is 42017747. The reversal of 42017740 is 4771024.

It is not an unprimeable number, because it can be changed into a prime (42017747) 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, 54907 + ... + 55666.

It is an arithmetic number, because the mean of its divisors is an integer number (3870090).

Almost surely, 2^42017740 is an apocalyptic number.

It is an amenable number.

42017740 is an abundant number, since it is smaller than the sum of its proper divisors (50864420).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

42017740 is a wasteful number, since it uses less digits than its factorization.

42017740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110601 (or 110599 counting only the distinct ones).

The product of its (nonzero) digits is 1568, while the sum is 25.

The square root of 42017740 is about 6482.1092246274. The cubic root of 42017740 is about 347.6515978479.

Adding to 42017740 its reverse (4771024), we get a palindrome (46788764).

The spelling of 42017740 in words is "forty-two million, seventeen thousand, seven hundred forty".