663222324 has 12 divisors (see below), whose sum is σ = 1547518784. Its totient is φ = 221074104.

The previous prime is 663222281. The next prime is 663222331. The reversal of 663222324 is 423222366.

It is a tau number, because it is divible by the number of its divisors (12).

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

It is a junction number, because it is equal to n+sod(n) for n = 663222291 and 663222300.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27634252 + ... + 27634275.

Almost surely, 2^663222324 is an apocalyptic number.

It is an amenable number.

663222324 is an abundant number, since it is smaller than the sum of its proper divisors (884296460).

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

663222324 is a wasteful number, since it uses less digits than its factorization.

663222324 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55268534 (or 55268532 counting only the distinct ones).

The product of its digits is 20736, while the sum is 30.

The square root of 663222324 is about 25753.1031916544. The cubic root of 663222324 is about 872.0734111105.

The spelling of 663222324 in words is "six hundred sixty-three million, two hundred twenty-two thousand, three hundred twenty-four".