1206644992 has 216 divisors, whose sum is σ = 3019887360. Its totient is φ = 478679040.

The previous prime is 1206644969. The next prime is 1206645017. The reversal of 1206644992 is 2994466021.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11277003 + ... + 11277109.

It is an arithmetic number, because the mean of its divisors is an integer number (13980960).

Almost surely, 2^1206644992 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1206644992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1509943680).

1206644992 is an abundant number, since it is smaller than the sum of its proper divisors (1813242368).

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

1206644992 is a wasteful number, since it uses less digits than its factorization.

1206644992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 197 (or 176 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 43.

The square root of 1206644992 is about 34736.7959374494. The cubic root of 1206644992 is about 1064.6164479514.

The spelling of 1206644992 in words is "one billion, two hundred six million, six hundred forty-four thousand, nine hundred ninety-two".