229757760 has 84 divisors (see below), whose sum is σ = 790280868. Its totient is φ = 61267968.

The previous prime is 229757713. The next prime is 229757767. The reversal of 229757760 is 67757922.

It can be written as a sum of positive squares in 2 ways, for example, as 152176896 + 77580864 = 12336^2 + 8808^2 .

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (229757767) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 37009 + ... + 42768.

Almost surely, 2^229757760 is an apocalyptic number.

229757760 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

229757760 is an abundant number, since it is smaller than the sum of its proper divisors (560523108).

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

229757760 is a wasteful number, since it uses less digits than its factorization.

229757760 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79800 (or 79787 counting only the distinct ones).

The product of its (nonzero) digits is 370440, while the sum is 45.

The square root of 229757760 is about 15157.7623678431. The cubic root of 229757760 is about 612.4773924739.

The spelling of 229757760 in words is "two hundred twenty-nine million, seven hundred fifty-seven thousand, seven hundred sixty".