1229099646 has 8 divisors (see below), whose sum is σ = 2458199304. Its totient is φ = 409699880.

The previous prime is 1229099639. The next prime is 1229099689. The reversal of 1229099646 is 6469909221.

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

1229099646 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 1229099595 and 1229099604.

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, 102424965 + ... + 102424976.

It is an arithmetic number, because the mean of its divisors is an integer number (307274913).

Almost surely, 2^1229099646 is an apocalyptic number.

1229099646 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.

1229099646 is a wasteful number, since it uses less digits than its factorization.

1229099646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 204849946.

The product of its (nonzero) digits is 419904, while the sum is 48.

The square root of 1229099646 is about 35058.5174529671. The cubic root of 1229099646 is about 1071.1797759487.

The spelling of 1229099646 in words is "one billion, two hundred twenty-nine million, ninety-nine thousand, six hundred forty-six".