229520646 has 96 divisors (see below), whose sum is σ = 543628800. Its totient is φ = 69750720.

The previous prime is 229520639. The next prime is 229520659. The reversal of 229520646 is 646025922.

229520646 is a `hidden beast` number, since 2 + 2 + 9 + 5 + 2 + 0 + 646 = 666.

229520646 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 229520646.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1752001 + ... + 1752131.

It is an arithmetic number, because the mean of its divisors is an integer number (5662800).

Almost surely, 2^229520646 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 229520646, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (271814400).

229520646 is an abundant number, since it is smaller than the sum of its proper divisors (314108154).

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

229520646 is a wasteful number, since it uses less digits than its factorization.

229520646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 314 (or 311 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 36.

The square root of 229520646 is about 15149.9388117576. The cubic root of 229520646 is about 612.2666241818.

The spelling of 229520646 in words is "two hundred twenty-nine million, five hundred twenty thousand, six hundred forty-six".