229740 has 48 divisors (see below), whose sum is σ = 736512. Its totient is φ = 52416.

The previous prime is 229739. The next prime is 229751. The reversal of 229740 is 47922.

It is a self number, because there is not a number n which added to its sum of digits gives 229740.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 147 + ... + 693.

It is an arithmetic number, because the mean of its divisors is an integer number (15344).

2²²⁹⁷⁴⁰ is an apocalyptic number.

229740 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 229740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (368256).

229740 is an abundant number, since it is smaller than the sum of its proper divisors (506772).

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

229740 is a wasteful number, since it uses less digits than its factorization.

229740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 566 (or 564 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 24.

The square root of 229740 is about 479.3120069433. The cubic root of 229740 is about 61.2461610811.

It can be divided in two parts, 229 and 740, that added together give a palindrome (969).

The spelling of 229740 in words is "two hundred twenty-nine thousand, seven hundred forty".