230643620 has 12 divisors (see below), whose sum is σ = 484351644. Its totient is φ = 92257440.

The previous prime is 230643541. The next prime is 230643629. The reversal of 230643620 is 26346032.

It can be written as a sum of positive squares in 2 ways, for example, as 137405284 + 93238336 = 11722^2 + 9656^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 230643620.

It is not an unprimeable number, because it can be changed into a prime (230643629) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5766071 + ... + 5766110.

It is an arithmetic number, because the mean of its divisors is an integer number (40362637).

Almost surely, 2^230643620 is an apocalyptic number.

230643620 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

230643620 is an abundant number, since it is smaller than the sum of its proper divisors (253708024).

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

230643620 is a wasteful number, since it uses less digits than its factorization.

230643620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11532190 (or 11532188 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 26.

The square root of 230643620 is about 15186.9555869503. The cubic root of 230643620 is about 613.2635442279.

Adding to 230643620 its reverse (26346032), we get a palindrome (256989652).

The spelling of 230643620 in words is "two hundred thirty million, six hundred forty-three thousand, six hundred twenty".