229169920 has 72 divisors (see below), whose sum is σ = 627377184. Its totient is φ = 78569472.

The previous prime is 229169879. The next prime is 229169923. The reversal of 229169920 is 29961922.

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is not an unprimeable number, because it can be changed into a prime (229169923) 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, 3829 + ... + 21748.

It is an arithmetic number, because the mean of its divisors is an integer number (8713572).

Almost surely, 2^229169920 is an apocalyptic number.

229169920 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

229169920 is an abundant number, since it is smaller than the sum of its proper divisors (398207264).

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

229169920 is an equidigital number, since it uses as much as digits as its factorization.

229169920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25605 (or 25591 counting only the distinct ones).

The product of its (nonzero) digits is 34992, while the sum is 40.

The square root of 229169920 is about 15138.3592241696. The cubic root of 229169920 is about 611.9546009868.

The spelling of 229169920 in words is "two hundred twenty-nine million, one hundred sixty-nine thousand, nine hundred twenty".