660244230 has 32 divisors (see below), whose sum is σ = 1760652000. Its totient is φ = 176065056.

The previous prime is 660244229. The next prime is 660244241. The reversal of 660244230 is 32442066.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 660244194 and 660244203.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1222405 + ... + 1222944.

It is an arithmetic number, because the mean of its divisors is an integer number (55020375).

Almost surely, 2^660244230 is an apocalyptic number.

660244230 is an abundant number, since it is smaller than the sum of its proper divisors (1100407770).

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

660244230 is a wasteful number, since it uses less digits than its factorization.

660244230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2445365 (or 2445359 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

The square root of 660244230 is about 25695.2180376038. The cubic root of 660244230 is about 870.7661503131.

Adding to 660244230 its reverse (32442066), we get a palindrome (692686296).

The spelling of 660244230 in words is "six hundred sixty million, two hundred forty-four thousand, two hundred thirty".