42316520 has 32 divisors (see below), whose sum is σ = 96145920. Its totient is φ = 16760640.

The previous prime is 42316517. The next prime is 42316529. The reversal of 42316520 is 2561324.

It is not an unprimeable number, because it can be changed into a prime (42316529) 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, 1016 + ... + 9255.

It is an arithmetic number, because the mean of its divisors is an integer number (3004560).

Almost surely, 2^42316520 is an apocalyptic number.

42316520 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

42316520 is an abundant number, since it is smaller than the sum of its proper divisors (53829400).

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

42316520 is a wasteful number, since it uses less digits than its factorization.

42316520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10385 (or 10381 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 42316520 is about 6505.1149105915. The cubic root of 42316520 is about 348.4736800560.

Adding to 42316520 its reverse (2561324), we get a palindrome (44877844).

The spelling of 42316520 in words is "forty-two million, three hundred sixteen thousand, five hundred twenty".