229910640 has 160 divisors (see below), whose sum is σ = 758046720. Its totient is φ = 57480192.

The previous prime is 229910573. The next prime is 229910641. The reversal of 229910640 is 46019922.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (229910641) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 578922 + ... + 579318.

It is an arithmetic number, because the mean of its divisors is an integer number (4737792).

Almost surely, 2^229910640 is an apocalyptic number.

229910640 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 229910640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (379023360).

229910640 is an abundant number, since it is smaller than the sum of its proper divisors (528136080).

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

229910640 is a wasteful number, since it uses less digits than its factorization.

229910640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 559 (or 553 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 33.

The square root of 229910640 is about 15162.8044899352. The cubic root of 229910640 is about 612.6132091172.

The spelling of 229910640 in words is "two hundred twenty-nine million, nine hundred ten thousand, six hundred forty".