1229984406 has 64 divisors (see below), whose sum is σ = 3127810560. Its totient is φ = 350969760.

The previous prime is 1229984389. The next prime is 1229984443. The reversal of 1229984406 is 6044899221.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 384345 + ... + 387531.

It is an arithmetic number, because the mean of its divisors is an integer number (48872040).

Almost surely, 2^1229984406 is an apocalyptic number.

1229984406 is an abundant number, since it is smaller than the sum of its proper divisors (1897826154).

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

1229984406 is a wasteful number, since it uses less digits than its factorization.

1229984406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4226 (or 4220 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 45.

The square root of 1229984406 is about 35071.1335146157. The cubic root of 1229984406 is about 1071.4367417434.

The spelling of 1229984406 in words is "one billion, two hundred twenty-nine million, nine hundred eighty-four thousand, four hundred six".