229770 has 64 divisors (see below), whose sum is σ = 656640. Its totient is φ = 57024.

The previous prime is 229769. The next prime is 229771. The reversal of 229770 is 77922.

It is an interprime number because it is at equal distance from previous prime (229769) and next prime (229771).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (229771) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6192 + ... + 6228.

It is an arithmetic number, because the mean of its divisors is an integer number (10260).

2²²⁹⁷⁷⁰ is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 229770, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (328320).

229770 is an abundant number, since it is smaller than the sum of its proper divisors (426870).

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

229770 is a wasteful number, since it uses less digits than its factorization.

229770 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76 (or 70 counting only the distinct ones).

The product of its (nonzero) digits is 1764, while the sum is 27.

The square root of 229770 is about 479.3433007772. The cubic root of 229770 is about 61.2488268552.

It can be divided in two parts, 229 and 770, that added together give a palindrome (999).

The spelling of 229770 in words is "two hundred twenty-nine thousand, seven hundred seventy".