229287020 has 24 divisors (see below), whose sum is σ = 481895568. Its totient is φ = 91640000.

The previous prime is 229287013. The next prime is 229287029. The reversal of 229287020 is 20782922.

229287020 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (229287029) 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, 25070 + ... + 32970.

It is an arithmetic number, because the mean of its divisors is an integer number (20078982).

Almost surely, 2^229287020 is an apocalyptic number.

229287020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

229287020 is an abundant number, since it is smaller than the sum of its proper divisors (252608548).

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

229287020 is a wasteful number, since it uses less digits than its factorization.

229287020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9361 (or 9359 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 32.

The square root of 229287020 is about 15142.2263884807. The cubic root of 229287020 is about 612.0588143172.

The spelling of 229287020 in words is "two hundred twenty-nine million, two hundred eighty-seven thousand, twenty".