663244212 has 48 divisors (see below), whose sum is σ = 1586816000. Its totient is φ = 215496288.

The previous prime is 663244207. The next prime is 663244237. The reversal of 663244212 is 212442366.

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 663244212.

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, 330789 + ... + 332787.

Almost surely, 2^663244212 is an apocalyptic number.

It is an amenable number.

663244212 is an abundant number, since it is smaller than the sum of its proper divisors (923571788).

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

663244212 is a wasteful number, since it uses less digits than its factorization.

663244212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2692 (or 2690 counting only the distinct ones).

The product of its digits is 13824, while the sum is 30.

The square root of 663244212 is about 25753.5281466443. The cubic root of 663244212 is about 872.0830045415.

Adding to 663244212 its reverse (212442366), we get a palindrome (875686578).

The spelling of 663244212 in words is "six hundred sixty-three million, two hundred forty-four thousand, two hundred twelve".