229140 has 72 divisors (see below), whose sum is σ = 742560. Its totient is φ = 57024.

The previous prime is 229139. The next prime is 229153. The reversal of 229140 is 41922.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3387 + ... + 3453.

2²²⁹¹⁴⁰ is an apocalyptic number.

229140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 229140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (371280).

229140 is an abundant number, since it is smaller than the sum of its proper divisors (513420).

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

229140 is a wasteful number, since it uses less digits than its factorization.

229140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101 (or 96 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 229140 is about 478.6857006429. The cubic root of 229140 is about 61.1927967942.

The spelling of 229140 in words is "two hundred twenty-nine thousand, one hundred forty".