229490920 has 32 divisors (see below), whose sum is σ = 534162600. Its totient is φ = 88630528.

The previous prime is 229490917. The next prime is 229490927. The reversal of 229490920 is 29094922.

229490920 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 160833124 + 68657796 = 12682^2 + 8286^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 229490920.

It is not an unprimeable number, because it can be changed into a prime (229490927) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 97759 + ... + 100078.

Almost surely, 2^229490920 is an apocalyptic number.

229490920 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

229490920 is an abundant number, since it is smaller than the sum of its proper divisors (304671680).

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

229490920 is a wasteful number, since it uses less digits than its factorization.

229490920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 197877 (or 197873 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 37.

The square root of 229490920 is about 15148.9577199225. The cubic root of 229490920 is about 612.2401907959.

The spelling of 229490920 in words is "two hundred twenty-nine million, four hundred ninety thousand, nine hundred twenty".