230680640 has 28 divisors (see below), whose sum is σ = 549309036. Its totient is φ = 92272128.

The previous prime is 230680627. The next prime is 230680661. The reversal of 230680640 is 46086032.

It can be written as a sum of positive squares in 2 ways, for example, as 92006464 + 138674176 = 9592^2 + 11776^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 360119 + ... + 360758.

Almost surely, 2^230680640 is an apocalyptic number.

230680640 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

230680640 is an abundant number, since it is smaller than the sum of its proper divisors (318628396).

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

230680640 is an equidigital number, since it uses as much as digits as its factorization.

230680640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 720894 (or 720884 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 29.

The square root of 230680640 is about 15188.1743471689. The cubic root of 230680640 is about 613.2963535780.

The spelling of 230680640 in words is "two hundred thirty million, six hundred eighty thousand, six hundred forty".