242770 has 16 divisors (see below), whose sum is σ = 476928. Its totient is φ = 88240.

The previous prime is 242747. The next prime is 242773. The reversal of 242770 is 77242.

242770 is nontrivially palindromic in base 9 and base 13.

242770 is digitally balanced in base 2, because in such base 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 (22).

It is not an unprimeable number, because it can be changed into a prime (242773) by changing a digit.

242770 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, 994 + ... + 1213.

It is an arithmetic number, because the mean of its divisors is an integer number (29808).

2²⁴²⁷⁷⁰ is an apocalyptic number.

242770 is a deficient number, since it is larger than the sum of its proper divisors (234158).

242770 is a wasteful number, since it uses less digits than its factorization.

242770 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2225.

The product of its (nonzero) digits is 784, while the sum is 22.

The square root of 242770 is about 492.7169572889. The cubic root of 242770 is about 62.3828204405.

The spelling of 242770 in words is "two hundred forty-two thousand, seven hundred seventy", and thus it is an iban number.