42370 has 16 divisors (see below), whose sum is σ = 80640. Its totient is φ = 15984.

The previous prime is 42359. The next prime is 42373. The reversal of 42370 is 7324.

It is not an unprimeable number, because it can be changed into a prime (42373) by changing a digit.

42370 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 79 + ... + 301.

It is an arithmetic number, because the mean of its divisors is an integer number (5040).

2⁴²³⁷⁰ is an apocalyptic number.

42370 is a deficient number, since it is larger than the sum of its proper divisors (38270).

42370 is a wasteful number, since it uses less digits than its factorization.

42370 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 249.

The product of its (nonzero) digits is 168, while the sum is 16.

The square root of 42370 is about 205.8397434899. The cubic root of 42370 is about 34.8620419651.

Adding to 42370 its reverse (7324), we get a palindrome (49694).

The spelling of 42370 in words is "forty-two thousand, three hundred seventy", and thus it is an iban number.