1229347868 has 18 divisors (see below), whose sum is σ = 2502601416. Its totient is φ = 526863288.

The previous prime is 1229347853. The next prime is 1229347871. The reversal of 1229347868 is 8687439221.

It is a super-2 number, since 2×1229347868² = 3022592361112290848, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3135896 + ... + 3136287.

It is an arithmetic number, because the mean of its divisors is an integer number (139033412).

Almost surely, 2^1229347868 is an apocalyptic number.

It is an amenable number.

1229347868 is an abundant number, since it is smaller than the sum of its proper divisors (1273253548).

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

1229347868 is a wasteful number, since it uses less digits than its factorization.

1229347868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6272201 (or 6272192 counting only the distinct ones).

The product of its digits is 1161216, while the sum is 50.

The square root of 1229347868 is about 35062.0573840156. The cubic root of 1229347868 is about 1071.2518808943.

The spelling of 1229347868 in words is "one billion, two hundred twenty-nine million, three hundred forty-seven thousand, eight hundred sixty-eight".