230640641 has 24 divisors (see below), whose sum is σ = 290982720. Its totient is φ = 178944480.

The previous prime is 230640611. The next prime is 230640643. The reversal of 230640641 is 146046032.

230640641 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 230640641 - 2¹⁴ = 230624257 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 230640641.

It is not an unprimeable number, because it can be changed into a prime (230640643) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 268070 + ... + 268928.

It is an arithmetic number, because the mean of its divisors is an integer number (12124280).

Almost surely, 2^230640641 is an apocalyptic number.

It is an amenable number.

230640641 is a deficient number, since it is larger than the sum of its proper divisors (60342079).

230640641 is a wasteful number, since it uses less digits than its factorization.

230640641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1205 (or 1194 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 26.

The square root of 230640641 is about 15186.8575090438. The cubic root of 230640641 is about 613.2609039063.

Adding to 230640641 its reverse (146046032), we get a palindrome (376686673).

The spelling of 230640641 in words is "two hundred thirty million, six hundred forty thousand, six hundred forty-one".