229906920 has 32 divisors (see below), whose sum is σ = 689721120. Its totient is φ = 61308480.

The previous prime is 229906913. The next prime is 229906931. The reversal of 229906920 is 29609922.

It is a happy number.

229906920 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 957826 + ... + 958065.

It is an arithmetic number, because the mean of its divisors is an integer number (21553785).

Almost surely, 2^229906920 is an apocalyptic number.

229906920 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

229906920 is an abundant number, since it is smaller than the sum of its proper divisors (459814200).

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

229906920 is a wasteful number, since it uses less digits than its factorization.

229906920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1915905 (or 1915901 counting only the distinct ones).

The product of its (nonzero) digits is 34992, while the sum is 39.

The square root of 229906920 is about 15162.6818208390. The cubic root of 229906920 is about 612.6099050314.

The spelling of 229906920 in words is "two hundred twenty-nine million, nine hundred six thousand, nine hundred twenty".