230621306 has 8 divisors (see below), whose sum is σ = 348254100. Its totient is φ = 114536608.

The previous prime is 230621233. The next prime is 230621309. The reversal of 230621306 is 603126032.

It can be written as a sum of positive squares in 2 ways, for example, as 222159025 + 8462281 = 14905^2 + 2909^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×230621306² = 106372373562291272, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (230621309) 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, 386651 + ... + 387246.

Almost surely, 2^230621306 is an apocalyptic number.

230621306 is a deficient number, since it is larger than the sum of its proper divisors (117632794).

230621306 is a wasteful number, since it uses less digits than its factorization.

230621306 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 774048.

The product of its (nonzero) digits is 1296, while the sum is 23.

The square root of 230621306 is about 15186.2209255628. The cubic root of 230621306 is about 613.2437665234.

Adding to 230621306 its reverse (603126032), we get a palindrome (833747338).

The spelling of 230621306 in words is "two hundred thirty million, six hundred twenty-one thousand, three hundred six".