229757920 has 48 divisors (see below), whose sum is σ = 620349408. Its totient is φ = 78773760.

The previous prime is 229757881. The next prime is 229757921. The reversal of 229757920 is 29757922.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (229757921) 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, 101451 + ... + 103690.

It is an arithmetic number, because the mean of its divisors is an integer number (12923946).

Almost surely, 2^229757920 is an apocalyptic number.

229757920 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

229757920 is an abundant number, since it is smaller than the sum of its proper divisors (390591488).

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

229757920 is a wasteful number, since it uses less digits than its factorization.

229757920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 205163 (or 205155 counting only the distinct ones).

The product of its (nonzero) digits is 158760, while the sum is 43.

The square root of 229757920 is about 15157.7676456660. The cubic root of 229757920 is about 612.4775346474.

The spelling of 229757920 in words is "two hundred twenty-nine million, seven hundred fifty-seven thousand, nine hundred twenty".