1229963646 has 8 divisors (see below), whose sum is σ = 2459927304. Its totient is φ = 409987880.

The previous prime is 1229963639. The next prime is 1229963677. The reversal of 1229963646 is 6463699221.

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

1229963646 is an admirable number.

It is a super-2 number, since 2×1229963646² = 3025621140963226632, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1229963595 and 1229963604.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 102496965 + ... + 102496976.

It is an arithmetic number, because the mean of its divisors is an integer number (307490913).

Almost surely, 2^1229963646 is an apocalyptic number.

1229963646 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1229963646 is a wasteful number, since it uses less digits than its factorization.

1229963646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 204993946.

The product of its digits is 839808, while the sum is 48.

The square root of 1229963646 is about 35070.8375434634. The cubic root of 1229963646 is about 1071.4307137125.

The spelling of 1229963646 in words is "one billion, two hundred twenty-nine million, nine hundred sixty-three thousand, six hundred forty-six".