229866940 has 48 divisors (see below), whose sum is σ = 521892000. Its totient is φ = 84748032.

The previous prime is 229866929. The next prime is 229866943. The reversal of 229866940 is 49668922.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (229866943) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5886 + ... + 22234.

It is an arithmetic number, because the mean of its divisors is an integer number (10872750).

Almost surely, 2^229866940 is an apocalyptic number.

229866940 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 229866940, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (260946000).

229866940 is an abundant number, since it is smaller than the sum of its proper divisors (292025060).

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

229866940 is a wasteful number, since it uses less digits than its factorization.

229866940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16414 (or 16412 counting only the distinct ones).

The product of its (nonzero) digits is 373248, while the sum is 46.

The square root of 229866940 is about 15161.3633951568. The cubic root of 229866940 is about 612.5743927411.

The spelling of 229866940 in words is "two hundred twenty-nine million, eight hundred sixty-six thousand, nine hundred forty".