6630630 has 16 divisors (see below), whose sum is σ = 15913584. Its totient is φ = 1768160.

The previous prime is 6630607. The next prime is 6630641. The reversal of 6630630 is 360366.

6630630 = 1286² + 1287² + ... + 1289².

It is a self number, because there is not a number n which added to its sum of digits gives 6630630.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 110481 + ... + 110540.

It is an arithmetic number, because the mean of its divisors is an integer number (994599).

Almost surely, 2^6630630 is an apocalyptic number.

6630630 is an abundant number, since it is smaller than the sum of its proper divisors (9282954).

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

6630630 is a wasteful number, since it uses less digits than its factorization.

6630630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 221031.

The product of its (nonzero) digits is 1944, while the sum is 24.

The square root of 6630630 is about 2575.0009708736. Note that the first 3 decimals coincide. The cubic root of 6630630 is about 187.8674748835.

Adding to 6630630 its reverse (360366), we get a palindrome (6990996).

It can be divided in two parts, 6630 and 630, that added together give a triangular number (7260 = T₁₂₀).

The spelling of 6630630 in words is "six million, six hundred thirty thousand, six hundred thirty".