42270 has 16 divisors (see below), whose sum is σ = 101520. Its totient is φ = 11264.

The previous prime is 42257. The next prime is 42281. The reversal of 42270 is 7224.

42270 is digitally balanced in base 2 and base 6, because in such bases it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is an Ulam number.

42270 is strictly pandigital in base 6.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 42270.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 675 + ... + 734.

It is an arithmetic number, because the mean of its divisors is an integer number (6345).

2⁴²²⁷⁰ is an apocalyptic number.

42270 is an abundant number, since it is smaller than the sum of its proper divisors (59250).

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

It is a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (50760).

42270 is a wasteful number, since it uses less digits than its factorization.

42270 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1419.

The product of its (nonzero) digits is 112, while the sum is 15.

The square root of 42270 is about 205.5966925804. The cubic root of 42270 is about 34.8345936883.

Adding to 42270 its reverse (7224), we get a palindrome (49494).

The spelling of 42270 in words is "forty-two thousand, two hundred seventy", and thus it is an iban number.